Proceedings 1987 Rapid Excavation and Tunneling Conference, New Orleans, Louisiana, June 14-18, 1987
| Корпоративные авторы: | , , |
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| Формат: | |
| Язык: | English |
| Опубликовано: |
Littleton, Colo.
Society of Mining Engineers
c1987.
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| Предметы: |


