@article{IM2_1995_59_2_a3,
     author = {I. K. Babenko},
     title = {Extremal problems of geometry, surgery on manifolds, and problems of group theory},
     journal = {Izvestiya. Mathematics},
     pages = {321--332},
     year = {1995},
     volume = {59},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1995_59_2_a3/}
}