Tongphu, Suwan, and Boontawee Suntisrivaraporn. “Algorithms for Measuring Similarity Between ELH Concept Descriptions: A Case Study on Snomed Ct”. COMPUTING AND INFORMATICS, vol. 36, no. 4, Nov. 2017, pp. 733-64, https://www.cai.sk/ojs/index.php/cai/article/view/2017_4_733.