ALBEVERIO, S.; LAKAEV, S. N.; RASULOV, T. H. The Efimov effect for a model operator associated with the Hamiltonian of a non conserved number of particles. Methods of Functional Analysis and Topology, [S. l.], v. 13, n. 1, p. 1–16, 2007. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/332. Acesso em: 16 dec. 2025.