2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/23568A short introduction to the physics and the method to treat quantum crystals of electrons (Wigner crystal) and the related disordered elastic systems.Lecture notes of the course given at the E. Fermi school on "Quantum Phenomena in Mesoscopic Systems", Varenna 2002Mesoscale and Nanoscale PhysicsStrongly Correlated Electronstext