@article{MZM_2004_75_4_a10,
     author = {S. P. Strunkov},
     title = {Weakly {Cospectral} {Graphs}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {614--623},
     year = {2004},
     volume = {75},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2004_75_4_a10/}
}