Beccu, Rainer <br/><br/>
Transmission of elastic stress wave energy through joints and bends in percussive rock drilling systems 

 - Uppsala  Acta Universitatis Upsaliensis  1996 
 - 24p.  24cm. 
<br/><br/> Includes bibliographical references 
<br/><br/><label>ISBN: </label>915543665x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science and technology
<br/><br/><label>LC Class. No.: </label>PAM A76.76.B42 No.177