@article{ARM_1974_10_1_a3,
     author = {Krupka, Demeter},
     title = {Of the structure of the {Euler} mapping},
     journal = {Archivum mathematicum},
     pages = {55--61},
     year = {1974},
     volume = {10},
     number = {1},
     mrnumber = {0394755},
     zbl = {0337.33012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1974_10_1_a3/}
}