%0 Journal Article
%A Kreith, Kurt
%T Disconjugacy Criteria for Nonselfadjoint Differential Equations of Even Order
%J Canadian journal of mathematics
%D 1971
%P 644-652
%V 23
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-071-7/
%R 10.4153/CJM-1971-071-7
%F 10_4153_CJM_1971_071_7