@article{GDZPPN002487470, title = {Some Gauge Natural Operators on Linear Connections.}, journal = {Monatshefte f\"ur Mathematik}, volume = {112}, year = {1991}, pages = {23-34}, zbl = {0722.53020}, url = {http://dml.mathdoc.fr/item/GDZPPN002487470} }
Gancarzewicz, Jacek; Kolár, Ivan. Some Gauge Natural Operators on Linear Connections.. Monatshefte für Mathematik, Tome 112 (1991) pp. 23-34. http://gdmltest.u-ga.fr/item/GDZPPN002487470/