The Stability of the Equilibrium of a Nonlinear Hill’s Equation

Aharonov Dov, 1990, Ergodic Theory Dynam. Systems, 10, 209, 10.1017/S0143385700005514

Arnold V. I., 1989, Ergodic Problems of Classical Mechanics

Arrowsmith D. K., 1990, An introduction to dynamical systems

10.1007/978-3-642-85671-6

10.1007/BF02419205

Magnus Wilhelm, 1979, Hill's equation

10.1016/0022-0396(73)90077-6

Moser J., 1962, Nachr. Akad. Wiss. Göttingen Math.-Phys. Kl. II, 1962, 1

10.1007/BF01048263

10.1007/978-3-642-87284-6

Simo Carles, 1982, Bifurcation, ergodic theory and applications (Dijon, 1981), 98, 184

Starzinskii V. M., 1955, Amer. Math. Soc. Transl. (2), 1, 189, 10.1090/trans2/001/09