Brown, E.T..
Design and Performance Of Underground Excavations / - 1st ed / - London EC1P 1JH : British Geotechnical Society , 1977 - p.518 :
0-7277-0211-4
HZ:11p56117`N84 / M4
Design and Performance Of Underground Excavations / - 1st ed / - London EC1P 1JH : British Geotechnical Society , 1977 - p.518 :
0-7277-0211-4
HZ:11p56117`N84 / M4