TY - JOUR AU - Hailat, Mohammad TI - On a generalization of the friendship theorem JO - Discussiones Mathematicae. Graph Theory PY - 2012 SP - 153 EP - 160 VL - 32 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DMGT_2012_32_1_a12/ LA - en ID - DMGT_2012_32_1_a12 ER -