@article{1256059464,
author = {Dulmage, A. L. and Mendelsohn, N. S.},
title = {Gaps in the exponent set of primitive matrices},
journal = {Illinois J. Math.},
volume = {8},
number = {4},
year = {1964},
pages = { 642-656},
language = {en},
url = {http://dml.mathdoc.fr/item/1256059464}
}
Dulmage, A. L.; Mendelsohn, N. S. Gaps in the exponent set of primitive matrices. Illinois J. Math., Tome 8 (1964) no. 4, pp. 642-656. http://gdmltest.u-ga.fr/item/1256059464/