TY  - JOUR
AU  - Lettrich, Jaroslav
TI  - Anti-nets. I. (Basic notation and properties - closure conditions)
JO  - Časopis pro pěstování matematiky
PY  - 1987
SP  - 6
EP  - 31
VL  - 112
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CPM.1987.118292/
DO  - 10.21136/CPM.1987.118292
LA  - en
ID  - 10_21136_CPM_1987_118292
ER  -