TY  - JOUR
TI  - Zprávy
JO  - Applications of Mathematics
PY  - 1960
SP  - 156
EP  - 158
VL  - 05
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/AM.1960.102701/
DO  - 10.21136/AM.1960.102701
LA  - cz
ID  - 10_21136_AM_1960_102701
ER  -