1 citations to https://www.mathnet.ru/rus/ivm840
  1. Zvyagin V., Ratiner N., “Degree of Locally Condensing Perturbations of Fredholm Maps With Positive Index and Applications”, J. Funct. Anal., 275:10 (2018), 2573–2613  crossref  mathscinet  zmath  isi  scopus