@article{GDZPPN002211432,
title = {Polar and Ol'shanskii decompositions.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {450},
year = {1994},
pages = {191-219},
zbl = {0786.22012},
url = {http://dml.mathdoc.fr/item/GDZPPN002211432}
}
Lawson, Jimmie D. Polar and Ol'shanskii decompositions.. Journal für die reine und angewandte Mathematik, Tome 450 (1994) pp. 191-219. http://gdmltest.u-ga.fr/item/GDZPPN002211432/