Keisuke Nakano An Implementation Scheme for XML Transformation Languages Through Derivation of Stream Processors. 74-90 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3302&spage=74 2004 conf/aplas/2004 APLAS db/conf/aplas/aplas2004.html#Nakano04