Lunde, J. (1974). Engineering Classification of rock masses for the design of tunnel support.
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Chicago-čujuhus (17. p.)
Lunde, J. Engineering Classification of Rock Masses for the Design of Tunnel Support. 1974.
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MLA-čujuhus (9. p.)
Lunde, J. Engineering Classification of Rock Masses for the Design of Tunnel Support. 1974.
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