M. Liu

Certified Reference Materials of Molybdenum Ore and Molybdenum Concentrate (GBW07141, GBW07142, GBW07143 and GBW07144)

Wei-dong Yan, Zhizhong Cheng, T. Gu, 2018, Geostandards and Geoanalytical Research.

Usable Values of Nickel Ore and Nickel Concentrate Certified Reference Materials

Wei-dong Yan, Zhizhong Cheng, Hongli Wen, 2015 .

Preparation of Four Chromium Ore Reference Materials

Wei-dong Yan, Zhizhong Cheng, T. Gu, 2012 .