@article{ARM_1995__31_4_a8,
     author = {Vosmansk\'a, Gabriela},
     title = {Natural transformations of semi-holonomic 3-jets},
     journal = {Archivum mathematicum},
     pages = {313--318},
     publisher = {mathdoc},
     volume = {31},
     number = {4},
     year = {1995},
     mrnumber = {1390591},
     zbl = {0852.58003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1995__31_4_a8/}
}