@article{paperid:1067053,
author = {Sakhdari, Seyed Mohammad and Khashyarmanesh, Kazem and Mojgan Afkhami},
title = {Annihilator graphs with four vertices},
journal = {Semigroup Forum},
year = {2017},
volume = {94},
number = {1},
month = {January},
issn = {0037-1912},
pages = {139--166},
			numpages = {27},
keywords = {Zero-divisor graph; Annihilator graph; Star graph; Connected graph; Isolated vertex; End vertex},
}