@article{RM_1981_36_5_a26,
     author = {V. I. Sobolev and V. I. Shcherbin},
     title = {On~local invertibility of maps of $K$-spaces},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {181--182},
     publisher = {mathdoc},
     volume = {36},
     number = {5},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1981_36_5_a26/}
}