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South African Institution of Civil Engineers | TIBKAT | 1970

South African tunnelling

TIBKAT | 1.1975/77 - 2002; damit Ersch. eingest.

South African tunnelling scheme—all systems go

Elsevier | 1991

Tunnelling Under Johannesburg

Rodger, S.J. / Institute of Materials, Minerals, and Mining | British Library Conference Proceedings | 2009

Transactions of the South African Institution of Civil Engineers

South African Institution of Civil Engineers | TIBKAT | 1.1951 - 8.1958