4

Natural environmental impact assessment: A rational approach

Year:
1977
Language:
english
File:
PDF, 84 KB
english, 1977
5

Borehole drainage and cutoff grouting in underground hydraulic structures

Year:
1980
Language:
english
File:
PDF, 74 KB
english, 1980
10

Underground structures

Year:
1997
Language:
english
File:
PDF, 856 KB
english, 1997