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TITLE: A comparative study of GSI chart versions in a heterogeneous rock mass media (Marao tunnel, north Portugal): a reliable index in geotechnical surveys and rock engineering design  Full Text
AUTHORS: Claudio Santa; Luis Goncalves; Helder I Chamine;
PUBLISHED: 2019, SOURCE: BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, VOLUME: 78, ISSUE: 8
INDEXED IN: Scopus WOS