Ambraseys, N. N. <br/><br/>
Cut-off efficienay of grout curtains and slurry trenches / -by N. N. Ambraseys. 

 - Londres, Inglaterra : Butterworths 
 - 20 p. 
<br/><br/> "A reprint from: grouts and drilling muds in engineering pr-actice: symposium urganized by the British National Society-of the International Society of Soil Mechanics and Foundati-on Engineering at the Institution of Civil Engineers held i-n may 1963".