@article{TAM_1980_6_1_a11,
     author = {Veljko A. Vuji\v{c}i\'c},
     title = {On the energy conservation theorem for the system with rheonomous constraints},
     journal = {Theoretical and applied mechanics},
     pages = {133 },
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAM_1980_6_1_a11/}
}