TY  - JOUR
AU  - W. Mlak
TI  - The epidermic effect for differential inequalities of the first order
JO  - Annales Polonici Mathematici
PY  - 1956
SP  - 157
EP  - 164
VL  - 3
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-3-1-157-164/
DO  - 10.4064/ap-3-1-157-164
LA  - en
ID  - 10_4064_ap_3_1_157_164
ER  -