TY - JOUR AU - D. V. Baydyuk TI - Description of Scattering Matrices of Unitary Extensions of Isometric Operators in Pontryagin Space JO - Matematičeskie zametki PY - 2013 SP - 940 EP - 943 VL - 94 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2013_94_6_a13/ LA - ru ID - MZM_2013_94_6_a13 ER -