@article{1255989007,
author = {Lam, T. Y.},
title = {On the number of solutions of $x^{p^{k}}=a$ in a $p$-group},
journal = {Illinois J. Math.},
volume = {32},
number = {4},
year = {1988},
pages = { 575-583},
language = {en},
url = {http://dml.mathdoc.fr/item/1255989007}
}
Lam, T. Y. On the number of solutions of $x^{p^{k}}=a$ in a $p$-group. Illinois J. Math., Tome 32 (1988) no. 4, pp. 575-583. http://gdmltest.u-ga.fr/item/1255989007/