TY - JOUR A1 - Letzel, Matthias C. A1 - Peter-Katalinic, Jasna A1 - Peter, Martin G. T1 - Mass spectrometry of chitin and chitosan oligosaccharides Y1 - 2001 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/18395 ER -