"The ecological rucksack of a mobile phone". Further training and teaching materials on resource conservation and resource efficiency based on ProgRess II Authors Wilhelm-Rechmann, Angelika; Scharp, Michael Fields of research Education and Digital Media Source information Title "The ecological rucksack of a mobile phone". Further training and teaching materials on resource conservation and resource efficiency based on ProgRess II Year of publication2017 Document typeUnclear document type