Torben Æ. Mogensen Linear Types for Cashflow Reengineering. 13-21 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2890&spage=13 2003 conf/ershov/2003 Ershov Memorial Conference db/conf/ershov/ershov2003.html#Mogensen03