%0 Journal Article
%A Willett, D.
%T A Generalization of Čaplygin's Inequality with Applications to Singular Boundary Value Problems
%J Canadian journal of mathematics
%D 1973
%P 1024-1039
%V 25
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-110-x/
%R 10.4153/CJM-1973-110-x
%F 10_4153_CJM_1973_110_x