@article{EMJ_2015_6_4_a4,
     author = {I. V. Orlov and S. I. Smirnova},
     title = {Invertibility of multivalued sublinear operators},
     journal = {Eurasian mathematical journal},
     pages = {44--58},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2015_6_4_a4/}
}