@article{10_4064_ap101_3_4,
     author = {Jan Kurek and W{\l}odzimierz M. Mikulski},
     title = {On prolongations of projectable connections},
     journal = {Annales Polonici Mathematici},
     pages = {237--250},
     publisher = {mathdoc},
     volume = {101},
     number = {3},
     year = {2011},
     doi = {10.4064/ap101-3-4},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap101-3-4/}
}