Up a level |
Number of items: 2.
Janssen, Jan-Christoph (2017). Why coffee and not honey – untangling the limits and opportunities for certifying the ‘moral quality’ of products. PhD thesis, Universität zu Köln.
Obersneider, Monika ORCID: 0000-0003-1004-9580, Janssen, Jan-Christoph and Wagner, Michael ORCID: 0000-0003-2589-6440 (2019). Regional Sex Ratio and the Dissolution of Relationships in Germany. European Journal of Population, 35 (4). pp. 825-849. Heidelberg ; Dordrecht: Springer. ISSN 0168-6577