@article{SM_2018_209_5_a0,
     author = {D. P. Il'yutko and E. A. Sevost'yanov},
     title = {Boundary behaviour of open discrete mappings on {Riemannian} manifolds},
     journal = {Sbornik. Mathematics},
     pages = {605--651},
     year = {2018},
     volume = {209},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2018_209_5_a0/}
}