Christian Zirpins Giacomo Piccinelli Winfried Lamersdorf Anthony Finkelstein Object Orientation and Web Services. 1-9 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3344&spage=1 2004 conf/ecoopw/2004 ECOOP Workshops db/conf/ecoopw/ecoopw2004.html#ZirpinsPLF04