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@article{JRAM_1994__448_153602, author = {Jimmie D. Lawson}, title = {Polar and {Ol'shanskii} decompositions.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {191--219}, publisher = {mathdoc}, volume = {448}, year = {1994}, zbl = {0786.22012}, url = {http://geodesic.mathdoc.fr/item/JRAM_1994__448_153602/} }
Jimmie D. Lawson. Polar and Ol'shanskii decompositions.. Journal für die reine und angewandte Mathematik, Tome 448 (1994), pp. 191-219. http://geodesic.mathdoc.fr/item/JRAM_1994__448_153602/