@article{10_21136_CMJ_1972_101132,
     author = {Dekr\'et, Anton},
     title = {On canonical forms on non-holonomic and semi-holonomic prolongations of principal fibre bundles},
     journal = {Czechoslovak Mathematical Journal},
     pages = {653--662},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1972},
     doi = {10.21136/CMJ.1972.101132},
     mrnumber = {0310921},
     zbl = {0246.53020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101132/}
}