This publication is cited in the following 3 articles:
Daniel Alpay, Bernd Kirstein, Operator Theory: Advances and Applications, 263, Indefinite Inner Product Spaces, Schur Analysis, and Differential Equations, 2018, 3
D. V. Baydyuk, “Description of Scattering Matrices of Unitary Extensions of Isometric Operators in Pontryagin Space”, Math. Notes, 94:6 (2013), 958–962
Aad Dijksma, Israel Gohberg, Contributions to Operator Theory in Spaces with an Indefinite Metric, 1998, 1