@article{ARM_2009_45_2_a1,
     author = {Khosravi, Behrooz},
     title = {On the prime graphs of the automorphism groups of sporadic simple groups},
     journal = {Archivum mathematicum},
     pages = {83--94},
     year = {2009},
     volume = {45},
     number = {2},
     mrnumber = {2591665},
     zbl = {1204.20028},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2009_45_2_a1/}
}