Uka, J. , McKay, B. , Minton, T. , Adole, O. , Lewis, R. , Glanvill, S. , Anguilano, L.. "An Evaluation of the Oxide Layers in Machining Swarfs to Improve Recycling". World Academy of Science, Engineering and Technology, Open Science Index 170, International Journal of Chemical and Materials Engineering, (2021), 15(2), 29 - 36.