%0 Journal Article %A S. B. Sagitova %A E. A. Shirokova %T An inverse boundary value problem for the parameter~$\theta $ %J Trudy seminara po kraevym zadačam %D 1983 %P 175-184 %V 19 %N 19 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1983_19_19_a18/ %G ru %F KUKZ_1983_19_19_a18