TY  - JOUR
AU  - Philip Hartman
TI  - On the monotonicity of nonnegative solutions and the uniqueness of eigenvalues
JO  - Annales Polonici Mathematici
PY  - 1983
SP  - 103
EP  - 113
VL  - 42
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-42-1-103-113/
DO  - 10.4064/ap-42-1-103-113
LA  - en
ID  - 10_4064_ap_42_1_103_113
ER  -