TY  - JOUR
TI  - Summaries of articles published in this issue
JO  - Czechoslovak Mathematical Journal
PY  - 1977
SP  - 673
EP  - 678
VL  - 27
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1977.101505/
DO  - 10.21136/CMJ.1977.101505
LA  - en
ID  - 10_21136_CMJ_1977_101505
ER  -