@article{KJM_2002_24_a3,
     author = {Mirko Lepovi\'c},
     title = {A note on graphs with two main eigenvalues},
     journal = {Kragujevac Journal of Mathematics},
     pages = {43 },
     publisher = {mathdoc},
     volume = {24},
     year = {2002},
     zbl = {1027.05062},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2002_24_a3/}
}