@book{27457,
	author = {European Conference On Soil Mechanics and Foundation Engineering (9th : 1987) and Hanrahan, E. T.,},
	title = {Groundwater Effects In Geotechnical Engineering : Proceedings Of The Ninth European Conference On Soil Mechanics And Foundation - Volume 1 /},
	publisher = {A. A. Balkema},
	year = {1987},
	address = {Rotterdam :}
}