Tage Stabell-Kulø Arne Helme Gianluca Dini Detecting Key-Dependencies. 356-366 1998 conf/acisp/1998 ACISP http://link.springer.de/link/service/series/0558/bibs/1438/14380356.htm db/conf/acisp/acisp1998.html#Stabell-KuloHD98