@article{10_2298_TAM170601006M,
     author = {Djordje Mu\v{s}icki},
     title = {Extended {Lagrangian} formalism for rheonomic systems with variable mass},
     journal = {Theoretical and applied mechanics},
     pages = {115 },
     year = {2017},
     volume = {44},
     number = {1},
     doi = {10.2298/TAM170601006M},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/TAM170601006M/}
}