著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Crull, Ernst Wilhelm","Der Begriff ""abhanden gekommen"" im §935 abs. 1 BGB",[Private reproduction],Richard Beckmann,1928,Inaugural-Dissertation,,,,https://cir.nii.ac.jp/crid/1130282269742608000