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  1. 1
    Bearbmagovva

    Pratique du percement des tunnels Dahkki Richardson, H. W, Mayo, R. S

    Almmustuhtton 1953
    Girji

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  2. 2
    Bearbmagovva

    A new perimeter control blast design concept for underground metal-nonmetal drifting applications Dahkki Iverson, Stephen R, Hustrulid, William A, Johnson, Jeffrey C

    Almmustuhtton 2013
    Girji

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