Thomas Erlebach Stamatis Stefanakos Wavelength Conversion in Shortest-Path All-Optical Networks. 595-604 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2906&spage=595 2003 conf/isaac/2003 ISAAC db/conf/isaac/isaac2003.html#ErlebachS03