Ask the authors, not me. I am just the messenger (and didn't have a good experience with oxalic) [log in to unmask] http://resources.metapress.com/pdf-preview.axd?code=y23528k7072j7774&size=largest -- Juanse Barros J. APIZUR S.A. Carrera 695 Gorbea - CHILE +56-45-271693 08-3613310 http://apiaraucania.blogspot.com/ [log in to unmask] *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm