@book{8826,
	author = {Tychonov, A. N. and Samarski, A. A.},
	title = {Partial differential equations of mathematical physics /},
	publisher = {Holden-Day,},
	year = {1964.},
	address = {San Francisco :},
	note = {Translation of [Uravnenii͡a matematicheskoĭ fiziki]}
}