%0 Journal Article %A Lettrich, Jaroslav %T Anti-nets. I. (Basic notation and properties - closure conditions) %J Časopis pro pěstování matematiky %D 1987 %P 6-31 %V 112 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1987.118292/ %R 10.21136/CPM.1987.118292 %G en %F 10_21136_CPM_1987_118292