doi:10.1017/S026502150800447X, Published by Cambridge University Press, 20 May 2008.
Several incorrect references were given in the Discussion section of the paper by G. Godet, first published online 20 May 2008 [1].
The authors apologise for these errors.
Discussion
Paragraph 4, line 10; reference to [14,24] should be [15,24].
Paragraph 5, line 4; reference to [19] should be [20].
Paragraph 5, line 13; reference to [22] should be [23].
Paragraph 5, line 17; reference to [18] should be [19].