Geotechnical studies of the foundation rock mass of Valhelhas dam (Portugal) / Ricardo Oliveira ... [et al.]
Geotechnical studies of the foundation rock mass of Valhelhas dam (Portugal) / Ricardo Oliveira ... [et al.]
. - Lisboa : LNEC, 1975
. - 9 p. : il. 30 cm
. - (Memória; 463)
624.131.25
627.82