@article{1250127223,
author = {Leonard, Philip A. and Williams, Kenneth S.},
title = {On the divisibility of the class number of $Q(\sqrt{pq})$ by -16},
journal = {Rocky Mountain J. Math.},
volume = {15},
number = {4},
year = {1985},
pages = { 491-492},
language = {en},
url = {http://dml.mathdoc.fr/item/1250127223}
}
Leonard, Philip A.; Williams, Kenneth S. On the divisibility of the class number of $Q(\sqrt{pq})$ by -16. Rocky Mountain J. Math., Tome 15 (1985) no. 4, pp. 491-492. http://gdmltest.u-ga.fr/item/1250127223/