@article{PIM_1964_N_S_04_18_a0,
     author = {Ilija Luka\v{c}evi\'c},
     title = {Sur {L'Invariance} {Des} {Equations} {Canoniques} {D'Un} {Systeme} {Non-Conservatif} {En} {Mecanique}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {7 },
     publisher = {mathdoc},
     volume = {_N_S_04},
     number = {18},
     year = {1964},
     url = {http://geodesic.mathdoc.fr/item/PIM_1964_N_S_04_18_a0/}
}