@article{NSJOM_2012_42_2a_3,
     author = {Marko Milatovi\'c, and Zoran Stani\'c},
     title = {The nested split
 graphs whose second
 largest eigenvalue is equal to 1},
     journal = {Novi Sad Journal of Mathematics},
     pages = {33-42},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {2012},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2012_42_2a_3/}
}