%0 Journal Article
%A Các, Nguyên Phuong
%T The Method of Upper and Lower Solutions for Some Nonlinear Boundary Value Problems in Unbounded Domains
%J Canadian journal of mathematics
%D 1985
%P 430-441
%V 37
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1985-025-0/
%R 10.4153/CJM-1985-025-0
%F 10_4153_CJM_1985_025_0