@book{52124,
	author = {Liapunoff, A. M.},
	title = {Problème général de la stabilité du mouvement /},
	publisher = {Princeton University Press,},
	year = {1949, [2nd printing 1952]},
	address = {Princeton :},
	note = {Translation from the Russian of the original paper of Liapounoff, and appeared in the Annales de la Faculté des Sciences de Toulouse, second series, vol. 9 (1907)}
}