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@article{MAN_1994__299_4_165226, author = {Buma L. Fridman and Evgeny A. Poletsky}, title = {Upper semicontinuity of automorphism groups.}, journal = {Mathematische Annalen}, pages = {615--628}, publisher = {mathdoc}, volume = {299}, number = {4}, year = {1994}, zbl = {0827.32028}, url = {http://geodesic.mathdoc.fr/item/MAN_1994__299_4_165226/} }
Buma L. Fridman; Evgeny A. Poletsky. Upper semicontinuity of automorphism groups.. Mathematische Annalen, Tome 299 (1994) no. 4, pp. 615-628. http://geodesic.mathdoc.fr/item/MAN_1994__299_4_165226/