含有內容需登入查看的頁面 (link) MacKenzie, David. The Exoneration of the "Black Hand". Boulder, CA: East European Monographs. 1998. ISBN 0-88033-414-2. MacKenzie, David. Dragutin
[2019-07-21]. Bibcode:1975JPCRD...4....1C. ISSN 0047-2689. doi:10.1063/1.555517. (原始内容存档于2022-05-17). Totten, George E.; MacKenzie, D. Scott. Handbook of Aluminum