db/conf/cikm/MulhemB93.html Philippe Mulhem Marie-France Bruandet A Way to Compare Objects. 49-56 CIKM1993/P049.pdf 1993 conf/cikm/93 CIKM db/conf/cikm/cikm93.html#MulhemB93 http://doi.acm.org/10.1145/170088.170102