TY  - JOUR
AU  - Pták, Vlastimil
TI  - Professor Miroslav Katětov's fiftieth birthday
JO  - Czechoslovak Mathematical Journal
PY  - 1968
SP  - 192
EP  - 193
VL  - 18
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100821/
DO  - 10.21136/CMJ.1968.100821
LA  - en
ID  - 10_21136_CMJ_1968_100821
ER  -