@article{AUM_2011_65_1_a4,
     author = {Bednarska, Anna},
     title = {Lagrangians and {Euler} morphisms on fibered-fibered frame bundles from projectable-projectable classical linear connections},
     journal = {Annales Universitatis Mariae Curie-Sk{\l}odowska. Mathematica },
     publisher = {mathdoc},
     volume = {65},
     number = {1},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUM_2011_65_1_a4/}
}