ABOUT THE STABILITY OF THE LIBRATION POINTS OF A ROTATING TRIAXIAL ELLIPSOID IN A DEGENERATE CASE Article Zhuravlev S.G. Celestial Mechanics. Kluwer Academic Publishers. Vol. 8. 1973. P. 75-84
STABILITY OF THE LIBRATION POINTS OF A ROTATING TRIAXIAL ELLIPSOID Article Zhuravlev S.G. Celestial Mechanics. Kluwer Academic Publishers. Vol. 6. 1972. P. 255-267