Tongphu, Suwan, and Boontawee Suntisrivaraporn. 2017. “Algorithms for Measuring Similarity Between ELH Concept Descriptions: A Case Study on Snomed Ct”. Computing and Informatics 36 (4):733-64. http://147.213.75.17/ojs/index.php/cai/article/view/2017_4_733.