Yi, H., Yang, H., Chung, S., Lee, H., & Yang, H. (1997). Environmental and safety concerns in underground construction: Proceedings of the 1st Asian Rock Mechanics Symposium, ARMS'97: a regional conference of ISRM/Seoul/Korea/13-15 October 1997. Rotterdam ; Brookfield, Vt.: A.A. Balkema.
Παραπομπή Chicago StyleYi, Hui-gun, Hyong-sik Yang, So-Keul Chung, Hi-Keun Lee, and Hyung-Sik Yang. Environmental and Safety Concerns in Underground Construction: Proceedings of the 1st Asian Rock Mechanics Symposium, ARMS'97: A Regional Conference of ISRM/Seoul/Korea/13-15 October 1997. Rotterdam ; Brookfield, Vt.: A.A. Balkema, 1997.
Παραπομπή MLAYi, Hui-gun, et al. Environmental and Safety Concerns in Underground Construction: Proceedings of the 1st Asian Rock Mechanics Symposium, ARMS'97: A Regional Conference of ISRM/Seoul/Korea/13-15 October 1997. Rotterdam ; Brookfield, Vt.: A.A. Balkema, 1997.