@article{https://doi.org/10.6102%2Fzis206,
doi = {10.6102%2Fzis206},
url = {http://zis.gesis.org/DoiId/10.6102%2Fzis206},
author = {Kals%2C E.%2C Becker%2C R.%2C Montada%2C L.%2C %26 Ittner%2C H.},
language = {deu},
title = {Trierer Skalensystem zum Umweltschutz},
journal = {Zusammenstellung sozialwissenschaftlicher Items und Skalen (ZIS)},
publisher = {ZIS - GESIS Leibniz Institute for the Social Sciences},
year = {1999}
}