An academic search engine gave me the following two hits for "wikipedia" but I don't have access to the journals in question, so would appreciate it if someone who has access could look them up:
Title: Knowledge and Truth: Answers or Questions? Author(s): Michael A. West Source: Surgical Infections Volume: 4 Number: 4 Page: 297 -- 309 DOI: 10.1089/109629603322761355 Publisher: Mary Ann Liebert, Inc.
Title: Spectroscopic Imaging in Art Conservation: A New Tool for Materials Investigations Author(s): Michael Attas ; Edward Cloutis ; Catherine Collins ; Douglas Goltz ; Claudine Majzels ; James R. Mansfield ; Henry H. Mantsch Source: Leonardo Volume: 36 Number: 4 Page: 304 DOI: 10.1162/002409403322258736 Publisher: MIT Press
I don't have access to the Surgical Infections journal. I do have Leonardo, and the given article doesn't cite Wikipedia, but on the same page there's an article that does; I added it to our list. AxelBoldt 06:00, 29 December 2005 (UTC)
I'm not sure if this qualifies as an academic source, or where to put it, but [1] references Wikipedia on page 6 and in the Appendix. Someone could take a look and decide where to put it. Dan Gardner 16:55, 15 Apr 2004 (UTC)
This preprint [2] cites the Quantum cryptography article. Since it is not published yet, I am putting it on talk page. Andris 13:48, Aug 20, 2004 (UTC)
Does wikipedia count as encyclopedic knowledge that doesn't need to be cited, or does it have its own MLA format?
An interesting study: Altmann U (2005). "Representation of Medical Informatics in the Wikipedia and its Perspectives". Stud Health Technol Inform. 116: 755–760. PMID 16160349. --WS 19:22, 31 December 2005 (UTC)
And another one that refers to wikipedia: Sauer IM, Bialek D, Efimova E, Schwartlander R, Pless G, Neuhaus P (2005). ""Blogs" and "wikis" are valuable software tools for communication within research groups". Artif Organs. 29 (1): 82–3. PMID 15644088.{{cite journal}}: CS1 maint: multiple names: authors list (link) --WS 19:26, 31 December 2005 (UTC)