%0 Journal Article %A E. A. Shirokova %T Application of homotopic families of closed curves in investigating the univalence of the solution of inverse boundary value problems %J Trudy seminara po kraevym zadačam %D 1979 %P 235-239 %V 16 %N 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1979_16_16_a23/ %G ru %F KUKZ_1979_16_16_a23