Lookup NU author(s): Dr Antonio Cossidente,
Dr Oli King
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Belgian Mathematical Society, 2000.
For re-use rights please refer to the publisher's terms and conditions.
Author(s): King OH; Cossidente A
Publication type: Article
Publication status: Published
Journal: Bulletin of the Belgian Mathematical Society - Simon Stevin
Date deposited: 13/07/2012
ISSN (print): 1370-1444
ISSN (electronic): 0037-5454
Publisher: Belgian Mathematical Society