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@article{MAN_1973__204_162459, author = {R.W. jr. Richardson}, title = {The {Variation} of {Isotropy} {Subalgebras} for {Analytic} {Transformation} {Goups.}}, journal = {Mathematische Annalen}, pages = {83--92}, publisher = {mathdoc}, volume = {204}, year = {1973}, zbl = {0266.57011}, url = {http://geodesic.mathdoc.fr/item/MAN_1973__204_162459/} }
R.W. jr. Richardson. The Variation of Isotropy Subalgebras for Analytic Transformation Goups.. Mathematische Annalen, Tome 204 (1973), pp. 83-92. http://geodesic.mathdoc.fr/item/MAN_1973__204_162459/