@article{ZR_1979_3_11_a4,
     author = {{\DJ}. S. {\DJ}uki\'c},
     title = {On the {Brachistochronic} {Motion} of a {Non-Conservative} {Dynamic} {System}},
     journal = {Zbornik radova},
     pages = {39 },
     publisher = {mathdoc},
     volume = {3},
     number = {11},
     year = {1979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZR_1979_3_11_a4/}
}