TY  - JOUR
AU  - Bican, Ladislav
TI  - Notes on purities
JO  - Czechoslovak Mathematical Journal
PY  - 1972
SP  - 525
EP  - 534
VL  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101124/
DO  - 10.21136/CMJ.1972.101124
LA  - en
ID  - 10_21136_CMJ_1972_101124
ER  -