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@article{FORUM_1991__3_2_186411, author = {Hans-Gerd Leopold}, title = {On {Function} {Spaces} of {Variable} {Order} of {Differentiation.}}, journal = {Forum mathematicum}, pages = {1--22}, publisher = {mathdoc}, volume = {3}, number = {2}, year = {1991}, zbl = {0737.46020}, url = {http://geodesic.mathdoc.fr/item/FORUM_1991__3_2_186411/} }
Hans-Gerd Leopold. On Function Spaces of Variable Order of Differentiation.. Forum mathematicum, Tome 3 (1991) no. 2, pp. 1-22. http://geodesic.mathdoc.fr/item/FORUM_1991__3_2_186411/