On the extension of the Laplace-Lagrange secular theory to order two in the masses for extrasolar systems

Canonical transformations depending on a small parameter

Andr� Deprit · Celestial Mechanics and Dynamical Astronomy · 1969 · 960 citations

Generalized Function, Small Parameter, Mathematical Modelling +2

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Smadar Naoz, Will M. Farr, Yoram Lithwick et al. · Nature · 2011 · 523 citations · Full text

Secular Planet–planet Interactions, Planetary Body

Secular Evolution of Hierarchical Triple Star Systems

Eric B. Ford, Boris Kozinsky, Frederic A. Rasio · The Astrophysical Journal · 2000 · 454 citations · Full text

Eccentricity Perturbations, Engineering, Planetary Body +9

Theory of General Perturbations with Unspecified Canonical Variables

Gen-Ichiro Hori · Publications of the Astronomical Society of Japan · 1966 · 436 citations

Spectral Theory, General Perturbations, Hamiltonian Theory +11

TEN NEW AND UPDATED MULTIPLANET SYSTEMS AND A SURVEY OF EXOPLANETARY SYSTEMS

Jason T. Wright, Shubekshya Upadhyay, Geoffrey W. Marcy et al. · The Astrophysical Journal · 2009 · 356 citations · Full text