https://www.logistiek.nl/211986/in-memoriam-walther-ploos-van-amstel-1962-20262026-10-04T21:50:45Zlogistieknl2026-10-04T20:47:42ZIn memoriam - Walther Ploos van Amstel (1962-2026)carriere,hogeschool-van-amsterdam,in-memoriam,stadsdistributieRegistration