Link to Greifswald Wiki and digitized sources including church books: http://genwiki.genealogy.net/GOV:GREALDJO64QC
Link to Greifswald Church books online: http://ub-goobi-pr2.ub.uni-greifswald.de/viewer/resolver?urn=urn%3Anbn%3Ade%3Agbv%3A9-g-2402626