Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{RCM_1976__10_181654, author = {Osvaldo Marrero}, title = {Eigenvalues of nonsingular matices and combinatorial applications}, journal = {Revista colombiana de matematicas}, pages = {121--124}, publisher = {mathdoc}, volume = {10}, year = {1976}, zbl = {0354.05018}, url = {http://geodesic.mathdoc.fr/item/RCM_1976__10_181654/} }
Osvaldo Marrero. Eigenvalues of nonsingular matices and combinatorial applications. Revista colombiana de matematicas, Tome 10 (1976), pp. 121-124. http://geodesic.mathdoc.fr/item/RCM_1976__10_181654/