Extra-Solar Planetary Systems (lectures)
(S.Ferraz-Mello,
T.A.Michtchenko, C.Beaugé & N. Callegari Jr.) In "Chaos and
Stability in Planetary Systems" (R. Dvorak et al., eds.), Lecture Notes
in Physics, Springer, Berlin (in press)
Resonance and Stability of Extra-Solar
Planetary Systems
(C. Beaugé, N. Callegari Jr., S. Ferraz-Mello &
T.A. Michtchenko) IAU Colloquium 197 (in press)
The orbits of the planets HD 82943 c,b
(S. Ferraz-Mello, T.A. Michtchenko & C. Beaugé) Astroph. J.
(in press) (astro-ph/0411734)
Planetary Migration and Extrasolar Planets in the
2/1 Mean-Motion
Resonance (C. Beaugé, S. Ferraz-Mello & T.A. Michtchenko)
(astro-ph/0404166)
Regular Motions in Extra-Solar Planetary
Systems (lectures)
(S. Ferraz-Mello,
T.A. Michtchenko & C. Beaugé) In "Chaotic Worlds: From Order
to
Disorder in Gravitational N-Body Systems" (B.A. Steves, ed.), Springer,
Dordrecht (2005) [in press] (astro-ph 0402335)
Dynamics of Two Planets in the 2/1 Mean-Motion
Resonance
(N. Callegari Jr., T. A. Michtchenko & S. Ferraz-Mello) Celestial
Mechanics
and Dynamical Astronomy, 89 (2004) (in press).
Secular dynamics of the three body problem:
application to
the upsilon Andromedae planetary system (T. A. Michtchenko & R.
Malhotra)
Icarus, 168, 237-248 (2004). (astro-ph/0307094).
Extrasolar Planets in Mean-Motion Resonance:
Apses
Alignment
and Asymmetric Stationary Solutions (C. Beaugé, S. Ferraz-Mello
& T.A. Michtchenko), Astrophysical Journal, 593, 1124-1133
(2003)
Evolution of Migrating Planet Pairs in
Resonance,
(S. Ferraz-Mello,
C. Beaugé & T.A. Michtchenko) Celestial Mechanics and
Dynamical
Astronomy, 87, 99-112 (2003) (astro-ph /0301252)
Modelling the high-eccentricity planetary
three-body problem.
Application to the GJ876 planetary system (C. Beaugé & T.A.
Michtchenko) Monthly Notice of the Royal Astronomical Society, 341,
760-770 (2003).
Extra-Solar Planetary Systems (S.Ferraz-Mello
&
T.A.Michtchenko)
Revista Mexicana de Astronomía e Astrofísica (serie
conferencias), 14,
7-10 (2002).
Modeling the 5:2 mean-motion resonance in the
Jupiter-Saturn
planetary system (T.A.Michtchenko & S.Ferraz-Mello), Icarus, 149,
357-374 (2001).
Resonant structure of the Outer Solar System in
the
neighborhood
of the Planets (T.Michtchenko & S.Ferraz-Mello), Astronomical
Journal, 122,
474-481 (2001).
Periodic solutions of the planetary
5:2-resonant
three-body
problem. (T.A.Michtchenko & S.Ferraz- Mello), In "New Developments
in the Dynamics of Planetary Systems" (R.Dvorak & J.Henrard,
eds.), Kluwer Publ. Dordrecht, pp.325-328 (2001).
Mutual Perturbations of the Planetary
Companions of
Pulsar
B 1257+12. (S.Ferraz-Mello) In "Visual Double Stars: Formation,
Dynamics
and Evolutionary Tracks" (J.A.Docobo et al. eds.), Kluwer Publ.,
Dordrecht, pp. 215-220 (1997)
Analytical proper elements for Hilda
asteroids. I: Construction of the formal solutions (O.I. Miloni, S.
Ferraz-Mello & C. Beaugé) Celestial Mechanics and
Dynamical
Astronomy, 92, xx-xx (2005).[in press] (pdf)
Asteroids in 2:1 Resonance with Jupiter:
Dynamics
and Size
Distribution. (F.Roig,
Survival of Trojan-type companions of Neptune
during primordial
planet migration (S.J.Kortenkamp, R.Malhotra, T.Michtchenko) Icarus,
167,
347-359 (2004).
A perturbative treatment of the co-orbital
motion
(D.Nesvorný,
F.Thomas, S.Ferraz-Mello & A.Morbidelli) Celestial Mechanics and
Dynamical
Astronomy, 82, 323-361 (2002).
Asteroids in 2:1 Resonance with Jupiter:
Dynamics
and Size
Distribution. (F.Roig, D.Nesvorný & S.Ferraz-Mello)
Monthly
Notices of the Royal Astronomical Society, 335, 417-431 (2002).
Regular and Chaotic Dynamics in the Mean-Motion
Resonances:
Implications for the Structure and Evolution of the Asteroidal Belt.(Review
Paper) (D.Nesvorný, S.Ferraz-Mello, M.Holman &
A.Morbidelli)
In "Asteroids III" (W.F.Bottke et al., eds.) University of Arizona
Press/Lunar
and Planetary Institute, 379-394 (2002).
Planetary Migration and the Effects of Mean
Motion
Resonances
on Jupiter's Trojan Asteroids (T.A. Michtchenko, C. Beaugé &
F. Roig), Astronomical Journal, 122, 3485-3491 (2001).
A Semianalytical Model for the Motion of the
Trojan
Asteroids:
Proper Elements and Families (C. Beaugé & F. Roig) Icarus, 153,
391-415 (2001).
Mean Motion Resonances in the Transneptunian
Region
-- II:
The 1:2, 3:4, and weaker Resonances (D. Nesvorný & F. Roig)
Icarus, 150, 104-123 (2001).
Mean Motion Resonances in the Transneptunian
Region
-- I:
The 2:3 Resonance with Neptune (D. Nesvorný & F. Roig)
Icarus, 148,
282-300 (2000).
Close approaches of the trans-Neptunian objects
to
Pluto
had left observable signatures on their orbital distribution
(D.Nesvorný,
F.Roig & S.Ferraz-Mello), Astronomical Journal 119, 953-969
(2000).
Slow and Fast Diffusion in Asteroidal-Belt
Resonances. A Review.
(S.Ferraz-Mello) Celestial Mechanics and Dynamical Astronomy 73,
25-37 (1999).
A symplectic mapping approach of the
dynamics
of the
Hecuba gap (F.Roig & S.Ferraz-Mello), Planetary and Space Science 47,
653-664 (1999).
A symplectic mapping approach for the study of
stochasticity
in 3D asteroidal resonances (F.Roig & S. Ferraz-Mello), In "The
Dynamics
of Small Bodies in the Solar System: A major key to Solar System
studies"
(A.E.Roy and B.Steves,eds.) Kluwer Publ. Dordrecht, pp. 13-18 (1999).
On the similarities and differences between the
3/2
and 2/1
asteroidal resonances (T. A. Michtchenko & S. Ferraz-Mello) In "The
Dynamics of Small Bodies in the Solar System: A major key to Solar
System
studies" (A.E.Roy and B.Steves, eds.) Kluwer Publ. Dordrecht, pp.
25-30 (1999).
Chaotic Diffusion in the 2/1, 3/2 and 4/3
Jovian
resonances
(D. Nesvorný & S.Ferraz-Mello) In "The Dynamics of
Small
Bodies in the Solar System: A major key to Solar System studies"
(A.E.Roy
and B.Steves, eds.) Kluwer Publ. Dordrecht, pp. 19-24 (1999).
Dynamics of real asteroids at the Hecuba gap
(F.Roig &
S.Ferraz-Mello) In "Impact of Modern Dynamics in Astronomy" (J.Henrard
& S.Ferraz-Mello, eds.) Kluwer Publ. Dordrecht, pp. 387-388 (1999).
Stochasticity of the 2/1 Asteroidal Resonance:
A
Symplectic
Mapping Approach. (S.Ferraz-Mello) In "Hamiltonian Systems with 3 or
more
Degrees of Freedom" (C.Simò, ed.), Kluwer Publ., Dordrecht, pp.
357-361(1999).
Chaos, Diffusion, Escape and Permanence of
Resonant
Asteroids
in Gaps and Groups. (S. Ferraz-Mello, D. Nesvorný, &
T.A.Michtchenko)
In "Solar System Formation and Evolution" (D.Lazzaro et al. eds.),
Astron.
Soc. Pacific, San Francisco, 65-82 (1998).
Dynamics of the exterior 2:3 resonance with
Neptune. (T.Gallardo
& S.Ferraz-Mello) Planetary and Space Science, 46, 945-965
(1998).
The determinant role of Jupiter's Great
Inequality
in the
depletion of the Hecuba Gap (S.Ferraz-Mello, T.Michtchenko &
F.Roig),
Astronomical Journal 116, 1491-1500 (1998).
On the lack of asteroids in the Hecuba Gap
(S.Ferraz-Mello,
D.Nesvorn'y & T.Michtchenko), Celestial Mechanics and Dynamical
Astronomy 69,
171-185 (1998).
The depletion of the Hecuba Gap vs. The
long-lasting Hilda
group (S.Ferraz-Mello, T.A.Michtchenko, D.Nesvorný, F.Roig &
A.Simula), Planetary and Space Science 46, 1425-1432 (1998).
Chaotic diffusion in the 2/1 asteroidal
resonance.
An application
of the frequency map analysis. (D.Nesvorny & S.Ferraz-Mello)
Astronomy
and Astrophysics, 320, 672-680 (1997).
A Symplectic Mapping approach to the study of
the
Stochasticity
in Asteroidal Resonances. (S.Ferraz-Mello) Celestial Mechanics and
Dynamical
Astronomy, 65, 421-437 (1997).
Orbital Evolution of Asteroids in the Hecuba
gap
(S.Ferraz-Mello
& T.Michtchenko). In "The Dynamical Behaviour of our Planetary
System",
(R.Dvorak & J.Henrard, eds.) Kluwer Publ., Dordrecht, pp.377-384
(1997).
On the asteroidal population of the first-order
Jovian resonances.
(D.Nesvorný & S.Ferraz-Mello) Icarus. 130, 247-258
(1997).
Escape of Asteroids from the Hecuba gap
(T.Michtchenko &
S.Ferraz-Mello) Planetary and Space Science. 45, 1587-1593
(1997).
On the Hecuba gap, (S.Ferraz-Mello) In
"Dynamics,
Ephemerides
and Astrometry of the Solar System", IAU Symposium 172,177-182
(1996).
Chaotic Transitions in Asteroidal Resonances, (Review
Paper) (S.Ferraz-Mello, J.C.Klafke, T.Michtchenko, D.Nesvorny)
Celestial
Mechanics and Dynamical Astronomy, 64, 93-105 (1996).
Chaos and the Dynamics of Resonant Asteroids (Review
Paper), (S.Ferraz-Mello & T.Michtchenko) Revista Mexicana de
Astronomia y Astrofísica. (Série Conferencias), 4,
27-34 (1996).
Comparative study of the asteroidal motion in
the
3/2 and
2/1 resonances with Jupiter. II. Three-dimensional model.
(T.Michtchenko
& S.Ferraz-Mello) Astronomy and Astrophysics, 310,
1021-1035
(1996).
Comparative study of the asteroidal motion in
the
3/2 and
2/1 resonances with Jupiter. I. Planar model. (T.Michtchenko &
S.Ferraz-Mello)
Astronomy and Astrophysics, 303: 945-963 (1995).
The depletion of the asteroidal belt at
resonances
(Invited
Lecture) (S.Ferraz-Mello, R.Dvorak & T.A.Michtchenko) In "From
Newton
to Chaos: Modern Techniques for Understanding and Coping with Chaos in
N-body Dynamical Systems". (A.E.Roy & B.A.Steves, eds.) Plenum
Press,
New York, pp. 157-169 (1995).
The high-eccentricity libration theory
revisited.
(T.Gallardo
& S.Ferraz-Mello) Celestial Mechanics and Dynamical Astronomy, 62:
145-165 (1995).
Kirkwood gaps and resonant groups (Invited Review
Paper) (S.Ferraz-Mello) IAU Symposium 160, 175-188
(1994).
Dynamics of the asteroidal 2:1 resonance.
(S.Ferraz-Mello)
Astronomical Journal, 108: 2330-2337(1994).
The high-eccentricity libration of the Hildas.
II.
Synthetic-theory
approach (T.Michtchenko & S.Ferraz-Mello). Celestial Mechanics and
Dynamical Astronomy, 56: 121-129 (1993).
Very-high eccentricity librations at some
higher
order resonances
(J.C.Klafke, S.Ferraz-Mello & T.Michtchenko) IAU Symposium 152,
153-158 (1992).
A Model for the Study of Very-High-Eccentricity
Asteroidal
Motion. The 3:1 resonance (S.Ferraz Mello & J.C.Klafke). In
"Predictability,
Stability and Chaos in N-body Dynamical Systems" (A.E.Roy, ed.) Plenum
Press, New York, pp. 177-184 (1991).
Libration Motion of Asteroid (279) Thule (M.
Tsuchida) Rev.
Mex. Astron. Astrofísica, 21, 585-589 (1990).
The High-Eccentricity Libration of the Hildas.
(S.Ferraz-Mello)
Astronomical Journal 96: 400-408 (1988).
Some instabilities in the 3/1 and 2/1
resonances
(T. Yokoyama,
M. Sato & M. Tsuchida) Celestial Mechanics, 41, 99-105
(1987).
On the 3/1 planar and circular resonant problem
(T.
Yokoyama
& M. Sato) Celestial Mechanics, 39, 117-132 (1986).
Resonance capture and the formation of the
outer
planets.
(C.Beaugé, S.J.Aarseth & S.Ferraz-Mello) Monthly Notices of
the Royal Astronomical Society, 270: 21-34 (1994).
Capture in exterior mean-motion resonances due
to
Poynting-Robertson
drag (C.Beaugé & S.Ferraz-Mello) Icarus, 110:
239-260
(1994).
Resonance trapping in the primordial solar
nebula:
The case
of a Stokes drag dissipation. (C.Beaugé & S.Ferraz Mello)
Icarus, 103:
301-318 (1993).
Capture of grains into resonances through
Poynting-Robertson
Drag (B .Sicardy, C.Beaugé, S.Ferraz-Mello, D.Lazzaro &
F.Roques)
Celestial Mechanics and Dynamical Astronomy, 57: 373-390 (1993).
Corotation solutions in the elliptic asteroidal
problem with
Stokes drag (C.Beaugé & S.Ferraz-Mello) IAU Symposium 152,
355-358 (1992).
Averaging the Elliptic Asteroidal Problem with
a
Stokes drag.
(S.Ferraz-Mello) In "Interrelations between Physics and Dynamics
for Minor Bodies in the Solar System". (D.Benest & Cl.Froeschle,
eds.)
Edit. Frontières (Gif-sur-Yvette, France), pp.45-60 (1992).
Planetary
satellites
Some aspects of the dynamics of fictitious
Earth's satellites
(N. Callegari & T. Yokoyama) Planetary and Space Science, 49,
35-46 (2001)
The origin of chaotic behaviour in the
Miranda-Umbriel
3:1 resonances (J. Henrard & M. Sato) Celestial Mechanics and
Dynamical
Astronomy 47, 391-417 (1990).
Semi-Analytical Solution for the Eccentricities
and
Longitudes
of Pericenter of Uranian Satellites. (D.Lazzaro, S.Ferraz-Mello &
R.Vieira
Martins) Astronomy and Astrophysics 182: 150-180 (1987).
Chaos and Secular Variations of Planar Orbits
in
2:1 Resonance
with Dione (S.Ferraz-Mello & R.Dvorak) Astronomy and Astrophysics 179:
304-310 (1987).
Orbital Resonances amongst Planetary Satellites
(Review
Paper) (S.Ferraz-Mello) In Dynamics of the Solar System (M.
Sidlichovsky,
ed.) Astron. Inst. Czech. Acad. Sciences, Praha, pp.49-57 (1987).
The Laplacian Resonance amongst Uranian Inner
Satellites
(D.Lazzaro, S.Ferraz-Mello & C.Veillet) Astronomy and Astrophysics 140:
33-38 (1984).
Discussion of the Photographic Observations of
the
Galilean
Satellites in the Period 1913-1928. (M.Tsuchida, S.Ferraz-Mello &
R.Biancale)
Astronomical Journal 87: 924-927 (1982).
Comparison of Sampson-Lieske Theory of the
Galilean
Satellites
of Jupiter with Observations (R. Biancale, S. Ferraz-Mello and
M.Tsuchida)
Celestial Mechanics 26: 225-228 (1982).
"Dynamics of the Galilean Satellites of
Jupiter"
(S.Ferraz-Mello),IAG-USP,
São Paulo, (1979).
"Natural and Artificial Satellite Motion",
(P.E.
Nacozy and
S.Ferraz-Mello, eds.) Univ.Texas Press, Austin (1979).
Satellites (Report) (S.Ferraz-Mello)
Transactions
International
Astronomical Union 17A: 140-143 (1979).
A Second-Order Theory of the Galilean
Satellites of
Jupiter.
(S.Ferraz-Mello) In "Dynamics of Planets and Satellites and Theories of
their Motion" (V.Szebehely, ed.) D.Reidel, Dordrecht, pp.209-236 (1978).
Masses of the Galilean Satellites of Jupiter.
(S.Ferraz-Mello)
Science 192: 1127-1128 (1976).
Discussion of the Photographic Observations of
the
Galilean
Satellites in the Period 1930-1970. (S.Ferraz-Mello and L.R.de Paula)
Astronomical
Journal 81: 127-131 (1976).
Problems of the Galilean Satellites of Jupiter.
(S.Ferraz-Mello)
Celestial Mechanics 12: 27-37 (1975).
Search and Determination of Periodicity
(S.Ferraz-Mello and
G.R.Quast) In "Exercises in Astronomy" (J. Kleczek, ed.), D. Reidel,
Dordrecht,
pp.231-235 (1987).
Estimation of Periods from Unequally Spaced
Observations.
(S.Ferraz-Mello) Astronomical Journal 86: 619-624 (1981).
Determination of Periods from Unevenly Spaced
Data.
(S.Ferraz-Mello)
In "Colóquio de Sistemas Binários Cerrados" (R.Vilhena de
Moraes, ed.) Soc. Astron. Brasil., Sao Paulo, pp.146-171 (1978).
Hamiltonian
Averaging Theories. Resonance
The Ideal Resonance Problem: The
post-post-pendulum approximation,
(S.Ferraz-Mello) Celestial Mechanics and Dynamical Astronomy, 83,
275-289 (2002).
Do average Hamiltonians exist? (S.Ferraz-Mello)
Celestial
Mechanics and Dynamical Astronomy 73, 243-248 (1999).
On high-eccentricity small-amplitude librations
(A.
Simula,
S. Ferraz-Mello & C. Giordano), In "The Dynamics of Small Bodies in
the Solar System: A major key to Solar System studies" (A.E.Roy and
B.Steves,
eds.) Kluwer Publ. Dordrecht, pp.7-12 (1999).
On Hamiltonian Averaging Theories and
Resonance.
(S.Ferraz-Mello)
Celestial Mechanics and Dynamical Astronomy. 65, 39-50 (1997).
The technique of Lie Transforms in Hamiltonian
Systems. (S.Ferraz-Mello)
In "Perturbation Theory and Chaos in Nonlinear Dynamics with emphasis
to
Celestial Mechanics" (J.Hagel, M.Cunha & R.Dvorak, eds.)
Universidade
da Madeira, Funchal and Institut für Astronomie Universität
Wien.
pp. 43-58 (1995).
On symmetrical planetary corotations (S.Ferraz
Mello, M.Tsuchida
& J.C. Klafke). Celestial Mechanics and Dynamical Astronomy, 55:
25-45 (1993).
Corotations in some higher-order resonances
(S.Ferraz-Mello,
M.Tsuchida & J.C.Klafke) IAU Symposium 152, 167-170 (1992).
Averaging Hamiltonian Systems. (S.Ferraz-Mello)
In
"Modern
Methods in Celestial Mechanics" (D.Benest & C.Froeschle,
eds).
Edit. Frontieres, Gif-sur-Yvette, pp.151-211 (1990).
On Resonance (Review Paper),
(S.Ferraz-Mello) Celestial Mechanics, 43: 69-89 (1988).
On a Class of Integrable Hamiltonians.
(S.Ferraz-Mello) Rev.
Soc. Brasil. Progr. Ciência (Ciência Cult.) 40:
598-600
(1988).
Averaging the Elliptic Asteroidal Problem Near
a
First-Order
Resonance. (S.Ferraz-Mello) Astronomical Journal 94: 208-212
(1987).
Resonance in Regular Variables: I-
Morphogenetic
Analysis
of the Orbits in the case of First-Order Resonance. (S.Ferraz-Mello)
Celestial
Mechanics 35: 209-220 (1985).
Resonance in Regular Variables: II- Formal
Solutions for
Central and Non-Central First-Order Resonance. (S.Ferraz-Mello)
Celestial
Mechanics 35: 221-234 (1985).
"Resonances in the Motion of Planets,
Satellites
and Asteroids"
(S.Ferraz-Mello & W.Sessin, eds.) IAG-USP (1985)
A note on Resonance in Regular Variables and
Averaging (S.
Ferraz-Mello & W. Sessin) Celestial Mechanics 34: 453-457
(1984).
Motion of two planets with periods
commensurable in
the ratio
2:1. Solutions of the Hori Auxiliary System. (W.Sessin and
S.Ferraz-Mello)
Celestial Mechanics, 32: 307-332 (1984).
Une extension de la Méthode de Delaunay.
(S.Ferraz-Mello)
Comptes Rendus Acad. Sciences Paris 286A: 969-971
(1978).
The high-eccentricity asymmetric expansion
of the
disturbing
function for non-planar resonant problems. (F.Roig, A.Simula,
S.Ferraz-Mello
& M.Tsuchida) Astronomy and Astrophysics, 329, 339-349
(1998).
On the convergence of the disturbing function.
(S.Ferraz-Mello)
In "From Newton to Chaos: Modern Techniques for Understanding and
Coping
with Chaos in N-body Dynamical Systems." (A.E.Roy & B.A.Steves,
eds.)
Plenum Press, New York, pp. 97-98 (1995).
On the convergence domain of the Laplacian
expansion of the
disturbing function. (S.Ferraz-Mello) Celestial Mechanics and Dynamical
Astronomy, 58: 37-52 (1994).
A Semi-Numerical Expansion of the Averaged
Disturbing Function
for some Very-High-Eccentricity Orbits. (S.Ferraz-Mello) Celestial
Mechanics 45:
65-68 (1989).
A Very-High-Eccentricity Asymmetric Expansion
of
the Disturbing
Function near Resonances of Any Order. (S.Ferraz-Mello and M.Sato)
Astronomy
and Astrophysics 225: 541-547 (1989).
Expansion of the Disturbing Force-Function for
the
Study
of High-Eccentricity Librations. (S.Ferraz-Mello) Astronomy and
Astrophysics 183:
397-402 (1987).
Miscellanea
Origin of the Basaltic Asteroid 1459
Magnya. A
Dynamical
and Mineralogical Study of the Outer Main Belt. (T.A.Michtchenko,
D.Lazzaro,
S.Ferraz-Mello & F.Roig), Icarus, 158, 343-359 (2002).
A Comparison between Methods to compute
Lyapunov
Exponents
(G. Tancredi, A. Sánchez & F. Roig) Astronomical Journal, 121,
1171-1179 (2001).
Discovery of a Basaltic Asteroid in the Outer
Main
Belt (D.
Lazzaro, T.A. Michtchenko, J.M. Carvano, R.P. Binzel, S.J. Bus, T.H.
Burbine,
T. Mothé-Diniz, M. Florczak, C.A. Angeli
& Alan W. Harris) Science, 288, 2033-2035 (2000)
Frequency Map Analysis of the orbital structure
in
elliptical
galaxies (F.C.Wachlin & S.Ferraz-Mello) Monthly Notices of the
Royal
Astronomical Society, 298, 22-32 (1998).
Frequency modified Fourier transform and its
applications
to asteroids (M. Sidlichovsky & D. Nesvorný), Celestial
Mechanics
and Dynamical Astronomy. 65, 137-148 (1997).
Wavelet analysis of the asteroidal resonant
motion.
(T.A.
Michtchenko & D. Nesvorný) Astronomy and Astrophysics, 313,
674-678 (1996).
A theoretical dynamical limit of planet X's
mass
based on
its perturbations on Uranus and Neptune (A. Brunini) Astronomy and
Astrophysics 265,
324-327 (1992).
On the ephemerides of Uranus (A. Brunini)
Astronomy
and Astrophysics 255,
401-404 (1992).
Comparison of Bretagnon's VSOP 82 Theory to the
Observations
of Uranus (R.S.Gomes and S. Ferraz-Mello) Astronomy and Astrophysics 203:
170-174 (1988).
Would a Planet X explain the Discrepancies in
the
Motions
of Uranus and Neptune? (R.S.Gomes and S.Ferraz-Mello) Anais Acad.
Brasil.
Ciências 60: 399-403 (1988).
Comparison of Bretagnon's VSOP 82 Theory to the
Observations
of Neptune (R.S.Gomes and S.Ferraz-Mello) Astronomy and Astrophysics 185:
327-331 (1987).
Reappearance of ordered motions in strongly
nonlinear Hamiltonian
systems (T. Yokoyama) .Celestial Mechanics 33: 99-109 (1984).
Elimination of Secular Terms Generated by the
Coupling of
Perturbations. (S.Ferraz-Mello) Celestial Mechanics 25: 293-296
(1981).