TY - JOUR AU - Zelinka, Bohdan TI - On a certain distance between isomorphism classes of graphs JO - Časopis pro pěstování matematiky PY - 1975 SP - 371 EP - 373 VL - 100 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CPM.1975.117890/ DO - 10.21136/CPM.1975.117890 LA - en ID - 10_21136_CPM_1975_117890 ER -