Viswanathan Ramanathan Peter Z. Revesz Constraint Database Solutions to the Genome Map Assembly Problem. 90-116 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3074&spage=90 2004 conf/cdb/2004 CDB db/conf/cdb/cdb2004.html#RamanathanR04