Mining science and technology'99 : proceedings of the'99 International Symposium on Mining Science and Technology / Beijing / China / 29-31 August 1999 - International Symposium on Mining Science and Technology (1999 : Beijing, China); Xie, Heping; Golosinski, Tad S. (Rotterdam, Netherlands : A.A. Balkema, 1999)
Keywords: Mining engineering -- Congresses