@article{ARM_2011_47_5_a2,
     author = {Brajer\v{c}{\'\i}k, J\'an},
     title = {Invariant variational problems on principal bundles and conservation laws},
     journal = {Archivum mathematicum},
     pages = {357--366},
     year = {2011},
     volume = {47},
     number = {5},
     mrnumber = {2876939},
     zbl = {1265.49049},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2011_47_5_a2/}
}