@article{BSMF_1899__27__160_1,
     author = {St\"ormer, C.},
     title = {Solution compl\`ete en nombres entiers de l{\textquoteright}\'equation $m\arctan \frac{1}{x}+n\arctan \frac{1}{y}=k\frac{\pi }{4}$},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {160--170},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {27},
     year = {1899},
     doi = {10.24033/bsmf.603},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.603/}
}