@article{SM_2010_201_10_a1,
     author = {B. D. Gel'man},
     title = {On the acyclicity of the solution sets of operator equations},
     journal = {Sbornik. Mathematics},
     pages = {1449--1459},
     publisher = {mathdoc},
     volume = {201},
     number = {10},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2010_201_10_a1/}
}