Derry O'Sullivan Barry Smyth David C. Wilson Analysing Similarity Essence for Case Based Recommendation. 717-731 http://dx.doi.org/10.1007/978-3-540-28631-8_52 2004 conf/ewcbr/2004 ECCBR db/conf/ewcbr/eccbr2004.html#OSullivanSW04