James Leslie Keedy Christian Heinlein Gisela Menger Reuse Variables: Reusing Code and State in Timor. 205-214 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3107&spage=205 2004 conf/icsr/2004 ICSR db/conf/icsr/icsr2004.html#KeedyHM04