@article{bwmeta1.element.bwnjournal-article-doi-10_4064-aa107-1-6,
author = {Kurt Girstmair},
title = {Generalized Dedekind sums, correlation of L-series, and the Galois module of cot($\pi$/N)cot(m$\pi$/N)},
journal = {Acta Arithmetica},
volume = {108},
year = {2003},
pages = {69-89},
zbl = {1075.11027},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa107-1-6}
}
Kurt Girstmair. Generalized Dedekind sums, correlation of L-series, and the Galois module of cot(π/N)cot(mπ/N). Acta Arithmetica, Tome 108 (2003) pp. 69-89. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa107-1-6/