A contract of sale need not be concluded in or evidenced by writing and is not subject to any other requirement as to form. It may be proved by any means, including witnesses.
CASE LAW:
judgement OS NR from 27 February 2006, rec. no.23Cb/211/2005
judgement OS NR from 17 May 2006, rec. no. 23Cb/29/2006
judgement OS BJ from 09 March 2007, rec. no. 1Cb/381/2006
judgement KS ZA from 25 October 2007, rec. no. 15Cb/10/2004
judgement KS BB from 10 May 2006, rec. no. 49Cbm/14/2004
judgement OS DK from 21 November 2008, rec. no. 5Cb/10/2008
judgement OS BJ from 29 October 2007, rec. no. 1Cb/282/2007
judgement KS ZA from 27 June 2007, rec. no. 15Cb/14/2005
judgement KS ZA from 18 June 2007, rec. no.15Cb/219/1998
judgement OS BJ from 5 February 2008, rec. no. 1Cb/265/2005
judgement OS BJ from 5 February 2008, rec. no. 1Cb/266/2005
judgement OS BJ from 5 February 2008, rec. no. 1Cb/270/2005
judgement OS TT from 20 October 2010, rec. no. 9Cb/75/2010
judgement OS TT from 19 May 2010, rec. no. 9Cb/169/2009
judgement OS TT from 13 May 2010, rec. no. 15Cb/15/2009
CISG ADVISORY COUNCIL OPINIONS:
CISG AC OPINION 1: Electronic Communications under CISG
CISG AC OPINION 3: Parol Evidence Rule, Plain Meaning Rule, Contractual Merger Clause and the CISG
LITERATURE:
see also annotated Article 11 in Pace Database
see also case law to article 11 in the UNCITRAL Digest of case law