TY - JOUR AU - Zelinka, Bohdan TI - On a problem of E. Prisner concerning the biclique operator JO - Mathematica Bohemica PY - 2002 SP - 371 EP - 373 VL - 127 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2002.134064/ DO - 10.21136/MB.2002.134064 LA - en ID - 10_21136_MB_2002_134064 ER -