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@article{MAN_1990__288_1_164763, author = {Thomas J. Enright and Mark G. Davidson}, title = {Covariant differential operators.}, journal = {Mathematische Annalen}, pages = {731--739}, publisher = {mathdoc}, volume = {288}, number = {1}, year = {1990}, zbl = {0723.22017}, url = {http://geodesic.mathdoc.fr/item/MAN_1990__288_1_164763/} }
Thomas J. Enright; Mark G. Davidson. Covariant differential operators.. Mathematische Annalen, Tome 288 (1990) no. 1, pp. 731-739. http://geodesic.mathdoc.fr/item/MAN_1990__288_1_164763/