1. V. A. Aleksandrov and A. P. Kopylov, Boundary Values of almost Isometric Mappings, and the Uniqueness of Closed Convex Surfaces [in Russian], Tez. Dokl. Simpoz. po Geomtrii v Tselom i Osnovaniyam Teorii Otnositel'nosti, Novosibirsk (1982), pp. 3?4.
2. A. P. Kopylov, ?Boundary values of almost isometric mappings,? Sib. Math. Zh.,25, No. 3, 120?131 (1984).
3. V. A. Aleksandrov, ?Isometry of domains inR n and the relative isometry of their boundaries. I,? Sib. Math. Zh.,30, No. 1, 3?13 (1988).
4. V. A. Aleksandrov, ?Isometry of domains inR n and the relative isometry of their boundaries. II,? Sib. Math. Zh.,26, No. 6, 3?8 (1985).
5. V. A. Aleksandrov, ?Unique determination of domains by the relative metric of their boundaries,? Tr. In-ta, Mat. AN SSSR, Sib. otd-nie,7, Issledovaniya po Geometrii i Matematicheskomu Analizu, 5?18 (1987).