https://openlibrary.org/books/OL25742296M.opds Lübeck 2015-07-19T04:31:37Z Grautoff, Otto https://openlibrary.org/authors/OL2421120A/Grautoff_Otto Klinkhardt & Biermann Leipzig 1900 ger https://openlibrary.org/books/OL25742296M https://archive.org/details/lubeck00grau 6872255