Helko Lehmann Michael Leuschel Inductive Theorem Proving by Program Specialisation: Generating Proofs for Isabelle Using Ecce. 1-19 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3018&spage=1 2003 conf/lopstr/2003 LOPSTR db/conf/lopstr/lopstr2003.html#LehmannL03