TY - JOUR AU - Ivan Gutman TI - Graphs with smallest sum of squares of vertex degrees JO - Kragujevac Journal of Mathematics PY - 2003 SP - 51 EP - 54 VL - 25 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KJM_2003_25_1_a3/ ID - KJM_2003_25_1_a3 ER -