@article{JMPA_1840_1_5__110_0,
     author = {Catalan, E.},
     title = {Note sur l'int\'egrale $\int^{\infty}_{\mathrm{o}}\frac{\cos ax dx}{\left(1+x^2\right)^n}$},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {110--114},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 5},
     year = {1840},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1840_1_5__110_0/}
}