Aruna, M.Rao, Y.V.Karmakar, N.C.2020-03-312020-03-312005CIM Bulletin, 2005, Vol.98, 1090, pp.78-https://idr.nitk.ac.in/handle/123456789/11009[No abstract available]Designing lanterns for the efficient lighting of mine roadways - An experimental approachArticle