Friction losses in rock tunnels / 
Royal institute of technology stockholm sweden  
 - Bulletin No. TRITA-VBI-100 
 - Stockholm   Royal institute of technology stockholm sweden   1980 
 - 64 pages  Tables, Graph 
<br/><br/><br/>In English 
<br/><br/> Pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydraulics
<br/><br/><label>Dewey Class. No.: </label>621.2 FRI 1980