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@article{MZ_1975__145_172274, author = {Wilhelm Singhof}, title = {On the {Lusternik-Schnirelmann} {Category} of {Lie} {Groups.}}, journal = {Mathematische Zeitschrift}, pages = {111--116}, publisher = {mathdoc}, volume = {145}, year = {1975}, zbl = {0315.55012}, url = {http://geodesic.mathdoc.fr/item/MZ_1975__145_172274/} }
Wilhelm Singhof. On the Lusternik-Schnirelmann Category of Lie Groups.. Mathematische Zeitschrift, Tome 145 (1975), pp. 111-116. http://geodesic.mathdoc.fr/item/MZ_1975__145_172274/