Discovery of a painting inspired by Ancient Egypt on the reverse of Train du Soir (1957) by Paul DelvauxEdène Derzelle, David Strivay, Francisca Vandepitte, Hippolyte Stassart and Catherine DefeytEur. Phys. J. Plus, 139 10 (2024) 947DOI: https://doi.org/10.1140/epjp/s13360-024-05749-0