@article{RM_1986_41_3_a16,
     author = {G. P. Mamedov},
     title = {Maps of classifying spaces},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {219--220},
     publisher = {mathdoc},
     volume = {41},
     number = {3},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1986_41_3_a16/}
}