platonic trad in mid ages

http://news.bbc.co.uk/2/hi/europe/7640176.stm
p. 305 - exitus and reditus
rediens ad essentiam suam reditione completa

p. 323
Louis-B Geiger in his groundbreaking "La participation dans la philosophie de St. Thomas d'Aquin" treats recipere as a synonym of participere. In giving examples, Geiger noted those which make particpation according to the mode of the participant a form of creation. (213) He noted that the Scholastics have in the law "Quidquid recipitur ad modem recipientis recipitur," "la loi fundamentale du devenir cosmique". A crucial reference for such an understanding of creation as the various modes of reception of the one First Principle is Thomas "De in divinis nominibus" the initial lecture of ch. 5, a chapter to which we have referred before. There we find that creation can be treated as "esse receptum et participatum" of the one "ipsum esse subsistens" because "all form received in another is limited and bound according to the capacity of the receiver."

I was wondering how I was going to cite the principle found when he treats of knowledge, of form being "constricted" by matter.

medieval visual images plato beginning p. 399

Biblio info:
The Platonic Tradition in the Middle Ages: A Doxographic Approach
By Stephen Gersh, University of Notre Dame Medieval Institute, M. J. F. M. Hoenen
Contributor Stephen Gersh, M. J. F. M. Hoenen
Published by Walter de Gruyter, 2002
ISBN 3110168448, 9783110168440
466 pages