@article {67611,
	title = {Prediction of collapsible soils by cone penetrometer and ultra-sonic tests},
	journal = {Studia Geotechnica et MechanicaStudia Geotechnica et Mechanica},
	volume = {32},
	year = {2010},
	month = {2010},
	pages = {3-21},
	isbn = {0137-6365},
	author = {Abbech, EK and Laouar, MS and MESSAOUD, Farid}
}
