%0 Journal Article %A A. G. Podgaev %T Compactness theorems connected with problems with unknown boundary %J Matematičeskie zametki SVFU %D 2021 %P 71-89 %V 28 %I mathdoc %U http://geodesic.mathdoc.fr/item/SVFU_2021_28_a5/ %G ru %F SVFU_2021_28_a5