Weyermann, CélineCélineWeyermann2023-06-192006-02-062023-06-192005http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-26695https://jlupub.ub.uni-giessen.de/handle/jlupub/17777http://dx.doi.org/10.22029/jlupub-17154enIn Copyrightddc:540Mass Spectrometric Investigation of the aging processes of ballpoint ink for the examination of questioned documents