TY  - JOUR
AU  - V. Komkov
TI  - Asymptotic behavior of non-linear differential equations via non-standard analysis. Part III. Boundedness and monotone behavior of the equation (a(t)φ(x)x')' + c(t)f(x) = q(t)
JO  - Annales Polonici Mathematici
PY  - 1980
SP  - 101
EP  - 108
VL  - 38
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-38-2-101-108/
DO  - 10.4064/ap-38-2-101-108
LA  - en
ID  - 10_4064_ap_38_2_101_108
ER  -