@article{RHM_1996__2_2_215_0,
     author = {Dell{\textquoteright} Aglio, Luca},
     title = {On the genesis of the concept of covariant differentiation},
     journal = {Revue d'histoire des math\'ematiques},
     pages = {215--264},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {2},
     number = {2},
     year = {1996},
     zbl = {0876.01030},
     mrnumber = {1438749},
     language = {en},
     url = {http://www.numdam.org/item/RHM_1996__2_2_215_0/}
}