TY  - JOUR
AU  - Kreith, Kurt
TI  - Disconjugacy Criteria for Nonselfadjoint Differential Equations of Even Order
JO  - Canadian journal of mathematics
PY  - 1971
SP  - 644
EP  - 652
VL  - 23
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-071-7/
DO  - 10.4153/CJM-1971-071-7
ID  - 10_4153_CJM_1971_071_7
ER  -