@article{RSMUP_1976__56__23_0,
     author = {Vassiliou, Efstathios},
     title = {Connections on $1$-jets principal fiber bundles},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {23--31},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {56},
     year = {1976},
     mrnumber = {494199},
     zbl = {0372.53007},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1976__56__23_0/}
}