%0 Journal Article %A Machala, FrantiĊĦek %T Incidence structures of type $(p, n)$ %J Czechoslovak Mathematical Journal %D 2003 %P 9-18 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2003__53_1_a1/ %G en %F CMJ_2003__53_1_a1