TY  - JOUR
AU  - Ohriska, Ján
TI  - Oscillation of differential equations and $v$-derivatives
JO  - Czechoslovak Mathematical Journal
PY  - 1989
SP  - 24
EP  - 44
VL  - 39
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1989.102276/
DO  - 10.21136/CMJ.1989.102276
LA  - en
ID  - 10_21136_CMJ_1989_102276
ER  -