Journal of Sustainable Mining
Journal of Sustainable Mining > 2014 > Vol. 13, iss. 2 > 14--21
Journal of Sustainable Mining > 2015 > Vol. 14, iss. 3 > 124--132
Journal of Sustainable Mining > 2014 > Vol. 13, iss. 2 > 14--21
Journal of Sustainable Mining > 2015 > Vol. 14, iss. 3 > 124--132