2 citations to https://www.mathnet.ru/rus/mzm1331
  1. Anatoly Stepin, Sergey Tikhonov, Contemporary Mathematics, 772, Topology, Geometry, and Dynamics, 2021, 311  crossref
  2. Giraud O., Thas K., “Hearing Shapes of Drums: Mathematical and Physical Aspects of Isospectrality”, Rev. Mod. Phys., 82:3 (2010), 2213–2255  crossref  mathscinet  adsnasa  isi  elib  scopus  scopus