Underground Mining Methods and Technology : proceedings of the International Symposium on Underground Mining Methods and Technology, Nottingham, England, september 8-13, 1986 - International Symposium on Underground Mining Methods and Technology (1986 : Nottingham, England); Szwilski, A.B.; Richards, M. J. (Amsterdam : Elsevier, 1987)
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Keywords: INGENIERÍA DE MINAS -- CONGRESOS