@article{CMUC_1973_14_4_a13,
     author = {Kol\'a\v{r}, Ivan},
     title = {Some higher order operations with connections {(Preliminary} communication)},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {761--766},
     year = {1973},
     volume = {14},
     number = {4},
     mrnumber = {0343202},
     zbl = {0273.53026},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1973_14_4_a13/}
}