@book{16548,
	author = {Maslov, V. P. and Fedoriuk, M. V.},
	title = {Semi-classical approximation in quantum mechanics},
	publisher = {D. Reidel,},
	year = {1981},
	series = {Mathematical Physics and Applied Mathematics},
	address = {Dordrecht:},
	note = {"Translator from the Russian by J. Niederle and J. Tolar"}
}