Computational Methods in Subsurface Hydrology.Procedings of the Eigth International Conference on Compu- tational Methods in Water Resources,held in Venice, Italy,June 11-15.1990 / 
Ed. Gambolati G.(i in.). 
 - Southampton :  Computational Mechan.Publications,  1990. 
 - [14],575 s.,bibliogr.;24 cm. 
<br/><br/><label>ISBN: </label>1853120669 
<br/><br/><label>Universal Decimal Class. No.: </label>556.3(061.3)  681.3(061.3)