@article{10_4064_cm_63_1_9_20, author = {Andrzej Bia{\l}ynicki-Birula and Joanna \'Swi\k{e}cicka}, title = {On complete orbit spaces of {SL(2)} actions, {II}}, journal = {Colloquium Mathematicum}, pages = {9--20}, publisher = {mathdoc}, volume = {63}, number = {1}, year = {1992}, doi = {10.4064/cm-63-1-9-20}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-63-1-9-20/} }