R. R. Sathiya, A. G. Jayasree, R. Tangirala, and D. Prasanna, “A Study of Various Result Merging Strategies for a Meta Search Engine”, IJET, vol. 7, no. 3.6, pp. 255–258, Jul. 2018, doi: 10.14419/ijet.v7i3.6.14983.