verified through VU library catalogue from this website - Pandora- http://pandora.nla.gov.au/pan/10589/20090129-0029/www.engineersmedia.com.au/journals/aaee/pdf/AJEE_14_2_Vrcelj.pdf  had to key abstract as wouldn't paste. TPP 23/10/2013. Added official URL -MA 28/10/13.  not dup of id 22347 (conference paper) Lyn 4/2/14