@article{1181071608,
author = {Benjamin, Elliot},
title = {On the Second Hilbert 2-Class Field of Real Quadratic Number Fields with 2-Class Group Isomorphic to $(2,2^n)$, $n\ge2$},
journal = {Rocky Mountain J. Math.},
volume = {29},
number = {4},
year = {1999},
pages = { 763-786},
language = {en},
url = {http://dml.mathdoc.fr/item/1181071608}
}
Benjamin, Elliot. On the Second Hilbert 2-Class Field of Real Quadratic Number Fields with 2-Class Group Isomorphic to $(2,2^n)$, $n\ge2$. Rocky Mountain J. Math., Tome 29 (1999) no. 4, pp. 763-786. http://gdmltest.u-ga.fr/item/1181071608/