@article{JRAM_1994__456_153663,
     author = {J.M. Moller and D. Notbohm},
     title = {Centers and finite coverings of finite loop spaces.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {99--134},
     publisher = {mathdoc},
     volume = {456},
     year = {1994},
     zbl = {0806.55008},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1994__456_153663/}
}