@article{JMPA_1869_2_14__103_0,
     author = {de La Gournerie},
     title = {M\'emoire sur les lignes spiriques (suite)},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {103--138},
     publisher = {Gauthier-Villars},
     volume = {2e s{\'e}rie, 14},
     year = {1869},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1869_2_14__103_0/}
}