Some problems on failure of rock masses / M. Rocha.
Rocha, M.
Some problems on failure of rock masses / M. Rocha. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - [16]p. - Memoria; No.258 / Laboratorio Nacional de Engenharia Civil .
Some problems on failure of rock masses / M. Rocha. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - [16]p. - Memoria; No.258 / Laboratorio Nacional de Engenharia Civil .