On a particular case of the general 4body problem.
Abstract
An investigation is conducted of the motion of a gyroscope of infinitesimal mass which according to Newton's gravity law is attracted by three spherical homogeneous bodies with a finite mass. It is assumed that the centers of inertia of the spherical bodies occupy the corners of an equilateral triangle. It is attempted to determine the orientations which the gyroscope can have when its center of inertia is placed at one of the libration points considered by Pedersen (1944)
 Publication:

Acta Astronautica
 Pub Date:
 August 1976
 DOI:
 10.1016/00945765(76)901569
 Bibcode:
 1976AcAau...3..481P
 Keywords:

 Astrodynamics;
 Center Of Gravity;
 Four Body Problem;
 Gyroscopic Stability;
 Librational Motion;
 Celestial Mechanics;
 Equations Of Motion;
 Equilibrium Equations;
 Kinetic Energy;
 Matrices (Mathematics);
 Moments Of Inertia;
 Motion Stability;
 Three Body Problem;
 Astrodynamics