@book{13982,
	author = {Krylov, N. V. and Buzytsky, P. L.},
	title = {Nonlinear elliptic and parabolic equations of the second order},
	publisher = {D. Reidel,},
	year = {1987},
	series = {Mathematics and its applications Soviet series},
	address = {Dordrecht:}
}