Hi all, regards my request for a copy of the paper, I have received it, thanks. Request off! cheers, Julian Reid j.reid at cse.csiro.au <mailto:j.reid at cse.csiro.au> ***Note Change of Divisional Name*** Visiting Scientist, C/- CSIRO Sustainable Ecosystems GPO Box 284 Canberra ACT 2601 Australia Phone 61 2 62421622 Fax 61 2 62421705