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@article{MM2_1997__94_2_156335, author = {J.-B. Gatsinzi}, title = {LS category of classifying spaces and 2-cones.}, journal = {Manuscripta mathematica}, pages = {243--252}, publisher = {mathdoc}, volume = {94}, number = {2}, year = {1997}, zbl = {0888.55004}, url = {http://geodesic.mathdoc.fr/item/MM2_1997__94_2_156335/} }
J.-B. Gatsinzi. LS category of classifying spaces and 2-cones.. Manuscripta mathematica, Tome 94 (1997) no. 2, pp. 243-252. http://geodesic.mathdoc.fr/item/MM2_1997__94_2_156335/