@article{BMMS_2013_36_1_a11,
     author = {Liangcai Zhang and Wujie Shi and Dapeng Yu and Jin Wang},
     title = {Recognition of  {Finite} {Simple} {Groups} {Whose} {First} {Prime} {Graph} {Components} are $r${-Regular}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2013},
     volume = {36},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2013_36_1_a11/}
}