@article{KUKZ_1990_24_24_a23,
     author = {E. A. Shirokova},
     title = {Solution of an interior inverse boundary value problem for the {Beltrami} equation with respect to the parameter $s$ by reduction to integral equations},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {240--248},
     publisher = {mathdoc},
     volume = {24},
     number = {24},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1990_24_24_a23/}
}