Prakhar Kumar Kharwar Rajesh Kumar Verma Exploration of nature inspired Grey wolf algorithm and Grey theory in machining of multiwall carbon nanotube/polymer nanocomposites. 1127-1148 2022 38 Eng. Comput. 2 https://doi.org/10.1007/s00366-020-01103-x db/journals/ewc/ewc38.html#KharwarV22