@article{JMPA_1838_1_3__355_0,
     author = {Delaunay, Ch.},
     title = {D\'etermination de l'int\'egration d\'efinie $\int^{\pi}_{o}\log \left(1-2a \cos x+a^2\right)dx$},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {355--356},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 3},
     year = {1838},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1838_1_3__355_0/}
}