2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/216819We study successive measurements of two observables using von Neumann's measurement model. The two-pointer correlation for arbitrary coupling strength allows retrieving the initial system state. We recover Luders rule, the Wigner formula and the Kirkwood-Dirac distribution in the appropriate limits of the coupling strength.Quantum Physicstext