@article{DAN_1991_316_2_a10,
     author = {Yu. F. Strugov},
     title = {Homeomorphy of $Q_p$-extremal mappings},
     journal = {Doklady Akademii Nauk},
     pages = {309--312},
     publisher = {mathdoc},
     volume = {316},
     number = {2},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_316_2_a10/}
}