Prof. Manuel A. V. Ribeiro da Silva
Department of Chemistry
Faculty of Science
Rua do Campo Alegre 687
P-4150 Porto, Portugal
Tel.: +351 2 608 2821
Fax: +351 2 200 8628
E-mail: risilva@fc.up.pt
> Published in Pure Appl. Chem.71(7), 1167-1306 (1999)