@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/}
}