The grade selection rule of the metal mines; an empirical study on copper mines
| Year of publication: |
2000
|
|---|---|
| Authors: | Shinkuma, Takayoshi ; Nishiyama, Takashi |
| Published in: |
Resources policy. - Amsterdam [u.a.] : Elsevier Science, ISSN 0301-4207, ZDB-ID 1889047. - Vol. 26.2000, 1, p. 31-38
|