%0 Journal Article %A Zelinka, Bohdan %T On a problem of E. Prisner concerning the biclique operator %J Mathematica Bohemica %D 2002 %P 371-373 %V 127 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2002.134064/ %R 10.21136/MB.2002.134064 %G en %F 10_21136_MB_2002_134064