TY - JOUR AU - F. Ferschl TI - The Theory of Graphs and its Applications - Berge, Claude JO - Metrika PY - 1963 SP - 77 EP - 78 VL - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MET_1963__7_175200/ ID - MET_1963__7_175200 ER -