Journal of Operator Theory
Volume 25, Issue 1, Winter 1991 pp. 183-211.
On a problem of the perturbation theory of selfadjoint operators in Krein spacesAuthors: P. Jonas
Author institution:Karl-Weierstrass-Institut für Mathematik, Akademie der Wissenschaften der DDR, Mohrenstrasse 39, Berlin 1086, GDR
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