3 citations to https://www.mathnet.ru/rus/faa1003
  1. Jürgen Pöschel, Progress in Mathematics, 169, European Congress of Mathematics, 1998, 167  crossref
  2. R S MacKay, S Aubry, “Proof of existence of breathers for time-reversible or Hamiltonian networks of weakly coupled oscillators”, Nonlinearity, 7:6 (1994), 1623  crossref
  3. C. Eugene Wayne, “Periodic and quasi-periodic solutions of nonlinear wave equations via KAM theory”, Commun.Math. Phys., 127:3 (1990), 479  crossref