Armin Heindl Kenneth Mitchell Appie van de Liefvoort The Correlation Region of Second-Order MAPs with Application to Queueing Network Decomposition. 237-254 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2794&spage=237 2003 conf/cpe/2003 Computer Performance Evaluation / TOOLS db/conf/cpe/cpe2003.html#HeindlML03