@article{KJM_2009_32_1_a11,
     author = {Gopalapillai Indulal and Ivan Gutman},
     title = {$D$-equienergetic self-complementary graphs},
     journal = {Kragujevac Journal of Mathematics},
     pages = {123 - 131},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {2009},
     zbl = {1199.05089},
     url = {http://geodesic.mathdoc.fr/item/KJM_2009_32_1_a11/}
}