@article{GDZPPN002190761,
title = {The number of k-ary, (k + 1)-free divisors of an integer.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {272},
year = {1975},
pages = {15-35},
zbl = {0303.10044},
url = {http://dml.mathdoc.fr/item/GDZPPN002190761}
}
Suryanarayana, D.; Prasad, V. Siva Rama. The number of k-ary, (k + 1)-free divisors of an integer.. Journal für die reine und angewandte Mathematik, Tome 272 (1975) pp. 15-35. http://gdmltest.u-ga.fr/item/GDZPPN002190761/