William C. Hoffman (L.T.G./N.P. = LIE TRANSFORMATION GROUP THEORY OF NEUROPSYCHOLOGY) (Grupos de Lie, Álgebras de Lie, y percepción)

http://home.att.net/~topologicalpsychology/

"Equivariant Dynamical Systems: a Formal Model for the Generation of Arbitrary Shapes" (William C. Hoffman) en "Shape in Picture: Mathematical Description of Shape in Grey-level Images" (ISBN-10: 3540575782, ISBN-13: 978-3540575788), se puede consultar en:
http://www.amazon.com/
http://books.google.com/

"The Lie transformation group model of visual perception" (Peter C. Dodwell) en
"Perception & Psychophysics" 1983, 34 (1), 1-16, se puede descargar .pdf en:
http://www.psychonomic.org/search/