Curvature-induced resonances in a two-dimensional Dirichlet tube P. Duclos; P. Exner; P. Šťovíček — 1995 Annales de l'I.H.P. Physique théorique
Perturbation of an eigen-value from a dense point spectrum : a general Floquet hamiltonian P. Duclos; P. Šťovíček; M. Vittot — 1999 Annales de l'I.H.P. Physique théorique