T. K.  MD and Govardhan, A., ?Query Expansion with Enhanced-BM25 Approach for Improving the Search Query Performance on Clustered Biomedical Literature Retrieval?, Journal of Digital Information Management, vol. 16, no. 2, pp. 85-98, 2018.

T. K.  MD and Govardhan, A., ?Query Expansion with Enhanced-BM25 Approach for Improving the Search Query Performance on Clustered Biomedical Literature Retrieval ??, Journal of Digital Information Management, vol. 16, no. 2, pp. 86-98, 2018.