Dunlu Peng Yang Yuan Kun Yue Xiaoling Wang Aoying Zhou Capacity Planning for Composite Web Services Using Queueing Network-Based Models. 439-448 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3129&spage=439 2004 conf/waim/2004 WAIM db/conf/waim/waim2004.html#PengYYWZ04