Optimization principle of combined surface and underground mining and its applications
Jian-hong Chen, De-sheng Gu, Jian-xiong LiТом:
10
Мова:
english
Сторінки:
4
DOI:
10.1007/s11771-003-0013-y
Date:
September, 2003
Файл:
PDF, 291 KB
english, 2003