@article{ARM_1973__9_4_a3,
     author = {Kol\'a\v{r}, Ivan},
     title = {On the infinitesimal geometric objects of submanifolds},
     journal = {Archivum mathematicum},
     pages = {203--211},
     publisher = {mathdoc},
     volume = {09},
     number = {4},
     year = {1973},
     mrnumber = {0375113},
     zbl = {0313.53008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1973__9_4_a3/}
}