@article{AM2_1982__24_136932,
     author = {Hanno Rund},
     title = {Differential-geometric and variational background of classical gauge field theories.},
     journal = {Aequationes mathematicae},
     pages = {121--174},
     publisher = {mathdoc},
     volume = {24},
     year = {1982},
     zbl = {0528.53053},
     url = {http://geodesic.mathdoc.fr/item/AM2_1982__24_136932/}
}