@article{JAC_2013__37_3_a2,
     author = {Epstein, Neil and Nasehpour, Peyman},
     title = {Zero-divisor graphs of nilpotent-free semigroups},
     journal = {Journal of Algebraic Combinatorics},
     pages = {523--543},
     publisher = {mathdoc},
     volume = {37},
     number = {3},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2013__37_3_a2/}
}