van Duin, S., Cook, C. David., Lukey, C. A., Spinks, G. Maxwell., Porter, I., Baafi, E. Y. & Nemcik, J. Anton. (2008). Multidisciplinary expertise applied to underground coal mining R and D projects with emphasis on adoption of lean automation techniques. The 3rd International Symposium on Modern Mining and Safety Technology Proceedings (pp. 10-14). China: Coal Industry Publishing House.
van Duin, S., Cook, C. David., Lukey, C. A., Spinks, G. Maxwell., Porter, I., Baafi, E. Y. & Nemcik, J. Anton. (2008). Multidisciplinary expertise applied to underground coal mining R and D projects with emphasis on adoption of lean automation techniques. The 3rd International Symposium on Modern Mining and Safety Technology Proceedings (pp. 10-14). China: Coal Industry Publishing House.