@article{RM_1980_35_1_a1,
     author = {Yu. G. Borisovich and B. D. Gel'man and A. D. Myshkis and V. V. Obukhovskii},
     title = {Topological methods in the fixed-point theory of multi-valued maps},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {65--143},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1980_35_1_a1/}
}