[1] Mandelbrot B B 1983 The Fractal Geometry of Nature (New York: Freeman)
[2] Hartley T T, Lorenzo C F, Qammer H K 1995 IEEE Trans. CAS-I 42 485
[3] Arena P, Caponetto R, Fortuna L, Porto D 1997 Proceedings ECCTD, Budapest 42 p1259
[4] Ahmad W M, Sprott J C 2003 Chaos, Solitons and Fractals 16 339
[5] Yu Y G, Li H X, Wang S, Yu J Z 2009 Chaos, Solitons and Fractals 42 1181
[6] Lu J G, Chen G R 2006 Chaos, Solitons and Fractals. 27 685
[7] Lu J G 2006 Phys. Lett. A 354 305
[8] Li C G, Chen G R 2004 Physica A 341 55
[9] Wang X Y, He Y J 2008 Acta Phys. Sin. 57 1485 (in Chinese) [王兴元, 贺毅杰 2008 物理学报 57 1485]
[10] Pecora L M, Carroll T L 1990 Phys. Rev. Lett. 64 821
[11] Yang D S, Zhang H G, Zhao Y, Song C H, Wang Y C 2010 Acta Phys. Sin. 59 1562 (in Chinese) [杨东升, 张化光, 赵琰, 宋崇辉, 王迎春 2010 物理学报 59 1562]
[12] Zhang H G, Zhao Y, Yu W, Yang D S 2008 Chin. Phys. B 17 4056
[13] Zhang H G, Huang W, Wang Z L, Chai T Y 2006 Phys. Lett. A 350 363
[14] Zhang H G, Wang Z L, Liu D R 2004 Int. J. Bifurcat. Chaos 14 3505
[15] Zhao Y, Zhang H G, Zheng C D 2008 Chin. Phys. B 17 529
[16] Sun Q Y, Zhang H G, Zhao Y 2010 Chin. Phys. B 19 070512
[17] Yang D S, Zhang H G, Li A P, Meng Z Y 2007 Acta Phys. Sin. 56 3121 (in Chinese) [杨东升, 张化光, 李爱平, 孟子怡 2007 物理学报 56 3121]
[18] Wang Y C, Zhang H G, Wang X Y, Yang D S 2010 IEEE Trans. Syst. Man Cybern. B 40 1468
[19] Bhalekar S, Daftardar-Gejji V 2010 Commun. Nonlinear Sci. Numer. Simulat. 15 3536
[20] Taghvafard H, Erjaee G H 2011 Commun. Nonlinear Sci. Numer. Simulat. 16 4079
[21] Cao H F, Zhang R X 2011 Acta Phys. Sin. 60 050510 (in Chinese) [曹鹤飞, 张若洵 2011 物理学报 60 050510]
[22] Sun N, Zhang H G, Wang Z L 2011 Acta Phys. Sin. 60 050511 (in Chinese) [孙宁, 张化光, 王智良 2011 物理学报 60 050511]
[23] Zhao L D, Hu J B, Liu X H 2010 Acta Phys. Sin. 59 2305 (in Chinese) [赵灵冬, 胡建兵, 刘旭辉 2010 物理学报 59 2305]
[24] Odibat Z M 2010 Nonlinear Dyn. 60 479
[25] Wu C J, Zhang Y B, Yang N N 2011 Chin. Phys. B 20 060505
[26] Wang X Y, Zhang Y L, Li D, Zhang N 2011 Chin. Phys. B 20 030506
[27] Sheu L J, Tam L M, Lao S K, Kang Y, Lin K T, Chen J H, Chen H K 2009 Int. J. Nonlinear Sci. Numer. Simulat. 10 33
[28] Zhang H G, Ma T D, Huang G B, Wang Z L 2010 IEEE Trans. Syst. Man Cybern. B 40 831
[29] Ma T D, Fu J, Sun Y 2010 Chin. Phys. B 19 090502
[30] Zhang H G, Ma T D, Yu W, Fu J 2008 Chin. Phys. B 17 3616
[31] Ma T D, Zhang H G, Wang Z L 2007 Acta Phys. Sin. 56 3796 (in Chinese) [马铁东, 张化光, 王智良 2007 物理学报 56 3796]
[32] Zhang H G, Ma T D, Fu J, Tong S C 2009 Chin. Phys. B 18 3742
[33] Zhang H G, Fu J, Ma T D 2009 Chin. Phys. B 18 969
[34] Zhang H G, Ma T D, Fu J, Tong S C 2009 Chin. Phys. B 18 3751
[35] Gao T G, Chen Z Q, Yuan Z Z, Yu D C 2007 Chaos, Solitons and Fractals 33 922
[36] Wu Z M, Xie J Y 2007 Chin. Phys. 16 1901
[37] Fu J, Yu M, Ma T D 2011 Chin. Phys. B 20 120508
[38] Podlubny I 1999 Fractional Differential Equations (New York: Academic)