@article{MV_1964_16_4_a7,
     author = {V. A. Vuji\v{c}i\'c},
     title = {Une formulation variationnelle du principe de {Hertz} dans l'espace de configuration},
     journal = {Matemati\v{c}ki vesnik},
     pages = {329 },
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1964},
     url = {http://geodesic.mathdoc.fr/item/MV_1964_16_4_a7/}
}