European contract law: Scots and South African perspectives / edited by Hector L. Queen, Reinhard Zimmermann. - MacQueen, Hector L. (OLS)http://pul/name/56950; Zimmermann, Reinhard. (OLS)http://pul/name/50260 (Edinburgh University Press, 2006)
In appendice: The principles of european contract law: p. 367-414