Mitigating destructive longwall bumps through conventional gate entry design / 
by Alan A. Campoli ... [et al.]. 
 - Pgh. [i.e. Pittsburgh] PA :  United States Dept. of the Interior, Bureau of Mines,  1990. 
 - ii, 38 p. :  ill. 
 - Report of investigations ;  9325 .
 - Report of investigations (United States. Bureau of Mines) ;  9325. .
<br/><br/><label>LCCN: </label>90002082  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine roof control.<br/>Rock bursts.<br/>Longwall mining.