@article{10_21136_CMJ_1987_102187,
     author = {Kainz, Gerd and Michor, Peter W.},
     title = {Natural transformations in differential geometry},
     journal = {Czechoslovak Mathematical Journal},
     pages = {584--607},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {1987},
     doi = {10.21136/CMJ.1987.102187},
     mrnumber = {913992},
     zbl = {0654.58001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1987.102187/}
}