@article{BSMA_1878_2_2_1_261_0,
     author = {Baillaud},
     title = {Sur la m\'ethode de {Hansen} pour la d\'etermination des perturbations absolues des petites plan\`etes},
     journal = {Bulletin des Sciences Math\'ematiques et Astronomiques},
     pages = {261--264},
     publisher = {Gauthier-Villars},
     volume = {2e s{\'e}rie, 2},
     number = {1},
     year = {1878},
     language = {fr},
     url = {http://archive.numdam.org/item/BSMA_1878_2_2_1_261_0/}
}