Robert D. Finn, Jaina Mistry, Benjamin Schuster-Böckler, Sam Griffiths-Jones, Volker Hollich, Timo Lassmann, Simon Moxon, Mhairi Marshall, Ajay Khanna, Richard Durbin, Sean R. Eddy, Erik L. L. Sonnhammer, Alex Bateman. Pfam: clans, web tools and services. Nucleic Acids Research. 2006-01-01, 34 (Database issue): D247–251 [2019-02-12]. ISSN 1362-4962. PMC 1347511. PMID 16381856. doi:10.1093/nar/gkj149. (原始內容存檔於2019-10-16).
Alex Bateman, Lachlan Coin, Richard Durbin, Robert D. Finn, Volker Hollich, Sam Griffiths-Jones, Ajay Khanna, Mhairi Marshall, Simon Moxon, Erik L. L. Sonnhammer, David J. Studholme, Corin Yeats, Sean R. Eddy. The Pfam protein families database. Nucleic Acids Research. 2004-01-01, 32 (Database issue): D138–141 [2019-02-12]. ISSN 1362-4962. PMC 308855. PMID 14681378. doi:10.1093/nar/gkh121. (原始內容存檔於2019-03-28).