@article{IM2_1987_28_1_a7,
     author = {A. Ch. Chigogidze},
     title = {Noncompact absolute extensors in dimension~$n$, $n$-soft mappings, and their applications},
     journal = {Izvestiya. Mathematics},
     pages = {151--174},
     year = {1987},
     volume = {28},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1987_28_1_a7/}
}