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Junaid, A. , Wang, W. , Street, C. , Rahman, M. , Gersbach, M. , Zhou, S. , McCaffrey, W. , Kuznicki, S.. "Viscosity Reduction and Upgrading of Athabasca Oilsands Bitumen by Natural Zeolite Cracking". World Academy of Science, Engineering and Technology, Open Science Index 45, International Journal of Materials and Metallurgical Engineering (2010), 4(9), 609 - 614.