Technology innovation in underground construction / 
editor, Gernot Beer 
 - Boca Raton [Fla.] ;  London :  CRC Press,  c2010 
 - xxiv, 504 p. :  ill. (some col.) ;  26 cm. 
<br/><br/> "A Balkema book." 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9780415551052 (hbk.) 0415551056 (hbk.) 9780203859629 (ebk.) 0203859626 (ebk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Underground construction--Technological innovations