- Co-Extra Newsletter 10, (28 May, 2009) [28/05/2009]
- Co-Extra Newsletter 9, (13 March, 2009) [13/03/2009]
- Co-Extra Newsletter 8, (18 February, 2009) [18/02/2009]
- Co-Extra Newsletter 7 (second version) [28/07/2008]
- Co-Extra Newsletter 6 (3 April, 2008) [03/04/2008]
- Co-Extra Newsletter 5 (14 January, 2008) [14/01/2008]
- Co-Extra Newsletter 4 (1st June 2007) [01/06/2007]
- Co-Extra Newsletter 3 (5 April 2007) [05/04/2007]
- Co-Extra Newsletter 2 (16 February 2007) [16/02/2007]
- Co-Extra Newsletter 1 (07 November 2006) [08/11/2006]
