1. S. Hong, Marine mineral resources-world market and opportunities in the coming decade, 2010 SMM Workshop, Offshore — Deep Sea Mining Dialogue (2010).
2. S. Hong, H. W. Kim, J. S. Choi, T. K. Yeu, S. J. Park, C. H. Lee and S. M. Yoon, A self propelled deep-seabed miner and lessons from shallow water tests, Proc. of the ASME 010 29 th International Conference on OMAE (2010).
3. S. Hong, J. S. Choi, H. W. Kim, T. K. Yeu, S. J. Park, T. H. Lee, U. H. Yoo and J. J. Jung, Development of a self-propelled test collector for deep-seabed manganese nodules, Proceedings of the Seventh ISOPE Ocean Mining Symposium (2007) 1–4.
4. L. Li and Z. Jue, Research of China’s pilot-miner in the mining system of poly-metallic nodule, Proceedings of the Sixth ISOPE Ocean Mining Symposium (2005) 124–131.
5. C. R. Deepak, S. Ramji, N. R. Ramesh, S. M. Babu, A. Raju, M. A. Shajahan, and M. A. Atmanand, Development and Testing of Underwater Mining System for Long Term Operations using Flexible Riser Concept, Proceedings of the Seventh ISOPE Ocean Mining Symposium (2007) 166–170.