1. Ya. M. Dymarskii, Differential Operators and Related Topics, 2000, 87  crossref
  2. Dymarskii, YM, “On normalized periodic eigenfunctions of some class of integro-differential equations”, Doklady Akademii Nauk, 368:6 (1999), 734  mathnet  mathscinet  isi
Предыдущая
1
2