Akbari M., Kheirabadi M., Moghaddamfar A.R., “Recognition by noncommuting graph of finite simple groups $L_4(q)$”, Front. Math. China, 6:1 (2011), 1–16
Andrei V. Zavarnitsine, “Fixed points of large prime-order elements in the equicharacteristic action of linear and unitary groups”, Sib. elektron. matem. izv., 8 (2011), 333–340
Zhang Liangcai, Shi Wujie, “Recognition of some simple groups by their noncommuting graphs”, Monatsh. Math., 160:2 (2010), 211–221
Zhang L., Shi W., “A new characterization of $\mathrm U_4(7)$ by its noncommuting graph”, J. Algebra Appl., 8:1 (2009), 105–114