@article{TAC_2017_32_a25,
     author = {J.R.B. Cockett and G.S.H. Cruttwell},
     title = {Connections in tangent categories},
     journal = {Theory and applications of categories},
     pages = {835--888},
     publisher = {mathdoc},
     volume = {32},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2017_32_a25/}
}