Search results
International Journal of Energy Research > 45 > 6 > 9492 - 9501
Journal of Sustainable Mining > 2014 > Vol. 13, iss. 2 > 30--38
International Journal of Energy Research > 45 > 6 > 9492 - 9501
Journal of Sustainable Mining > 2014 > Vol. 13, iss. 2 > 30--38