Mining systems adjusted to high rock pressure conditions :  proc. of the 9th Plenary Scientific Session of the Intl. Bureau of Strata Mechanics, World Miniing Congress, Varna, 18-21 June, 1985 / 
edited by A. Kidybinski, M. Kwasniewski 
 - Rotterdam :  A. A. Balkema,  1985 
 - x, 348 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographies 
<br/><br/><br/>engger 
<br/><br/><label>ISBN: </label>9061916585 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining engineering--Congresses<br/>Rock mechanics--Congresses