Feodor F. Dragan Irina Lomonosov On Compact and Efficient Routing in Certain Graph Classes. 402-414 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3341&spage=402 2004 conf/isaac/2004 ISAAC db/conf/isaac/isaac2004.html#DraganL04