@article{PIM_2005_N_S_78_92_a2,
     author = {Drago\v{s} Cvetkovi\'c and Mirko Lepovi\'c},
     title = {Cospectral {Graphs} {With} {Least} {Eigenvalue} at {Least} -2},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {51 },
     publisher = {mathdoc},
     volume = {_N_S_78},
     number = {92},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2005_N_S_78_92_a2/}
}