@article{PORMA_1957__16_3_114791,
     author = {Griffin, J.S. jr.},
     title = {Affine connections in terms of the tangent bundle},
     journal = {Portugaliae mathematica},
     pages = {95--108},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {1957},
     mrnumber = {0123266},
     zbl = {0090.12701},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1957__16_3_114791/}
}