Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Helmut Zahn and Ludwig Zürn,DL‐Hydroxylysin und DL‐Allohydroxylysin und ihre Lactone,Chemische Berichte,0009-2940,Wiley,1958-07,91,7,1359-1371,https://cir.nii.ac.jp/crid/1363388846087315712,https://doi.org/10.1002/cber.19580910702