TY  - JOUR
TI  - Journal for the Cultivation of Mathematics. Abstracts
JO  - Czechoslovak Mathematical Journal
PY  - 1961
SP  - 483
EP  - 484
VL  - 11
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1961.100476/
DO  - 10.21136/CMJ.1961.100476
LA  - en
ID  - 10_21136_CMJ_1961_100476
ER  -