@book{14679,
	author = {Starzhinskii, V. M. and Kisin, V. I. ; tr.},
	title = {Applied methods in the theory of nonlinear oscillations},
	publisher = {MIR Publication},
	year = {1980},
	address = {Moscow},
	note = {"Tr. from the Russian by V. I. Kisin".}
}