Proceeding/International Congress on Rock Mechanics/ 
omptesrendus/Congres international de mecanique des roches Berichte/Internationaler Kongress uber Felsmechanik. 
 - Rotterdam:  A. A. Balkema,  1991. 
 - v.:  ill. ;  29 cm. 
<br/><br/> At head of title: International Society for Rock Mechanics. 
<br/><br/><br/>engfregre. 
<br/><br/><label>ISBN: </label>9054100125 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rock mechanics--Congresses