TY - JOUR AU - Alireza Khalili Asboei AU - Seyed Sadegh Salehi Amiri AU - Ali Iranmanesh AU - Abolfazl Tehranian TI - A new characterization of $A_{7}$ and $A_{8}$ JO - Analele Universităţii "Ovidius" Constanţa Seria Matematică PY - 2013 VL - XXI IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ASUO_2013_XXI_3_a7/ ID - ASUO_2013_XXI_3_a7 ER -