Vicente Pelechano Joan Fons Manoli Albert Oscar Pastor Developing Web Applications from Conceptual Models. A Web Services Approach. 40-51 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2814&spage=40 2003 conf/er/2003w ER (Workshops) db/conf/er/erw2003.html#PelechanoFAP03