Search results for: Ying Ma
Journal of China University of Mining and Technology > 2008 > 18 > 2 > 220-223
Journal of China University of Mining and Technology > 2008 > 18 > 1 > 22-26
Journal of China University of Mining and Technology > 2007 > 17 > 4 > 489-493
Journal of China University of Mining and Technology > 2007 > 17 > 2 > 168-171