Dear Library Professional, One of our Faculty member has urgently required the below mentioned articles for his research purpose. It would be highly appreciated if anyone can send these article to us. 1. The Lie algebra of visual perception Author: William C. Hoffman Source Journal: Journal of Mathematical Psychology, Volume 3, Issue 1, February 1966, Pages 65-98 2. Higher visual perception as prolongation of the basic lie transformation group Author: William C. Hoffman Source Journal: Mathematical Biosciences, Volume 6, 1970, Pages 437-471 3. A system of axioms for mathematical biology Author: William C. Hoffman Source Journal: Mathematical Biosciences, Volume 16, Issues 1-2, February 1973, Pages 11-29 Thanks and regards. Ajay Kumar Sharma Assistant Librarian & In-charge, Journal Section, Central Library, Visva Bharati, Santiniketan - 731235, Bolpur, Birbhum, West Bengal & Webmaster of ABSLA Email: ajaysharma.lib@visva-bharati.ac.in Web: http://www.absla.org/ajay.html Web Blog: http://www.blogger.com/home?pli=1 *********************************************************** 1. Join today Digital Library Discussion Forum http://drtc.isibang.ac.in/dlrg 2. Join today LIS-Forum mailing list http://ncsi.iisc.ernet.in/mailman/listinfo/lis-forum -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.