@article{GDZPPN002537486,
title = {Contribution to the problem of the spectra of compound graphs.},
journal = {Publications de l'Institut Math\'ematique [Elektronische Ressource]},
volume = {38},
year = {1978},
pages = {53-60},
zbl = {0397.05042},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN002537486}
}
Gutman, I. Contribution to the problem of the spectra of compound graphs.. Publications de l'Institut Mathématique [Elektronische Ressource], Tome 38 (1978) pp. 53-60. http://gdmltest.u-ga.fr/item/GDZPPN002537486/