@book{10918,
	author = { Patra, Nihar Ranjan.	},
	title = {Advance Geotechnological Engineering (Pdf Lecture Series 9)},
	publisher = {;Indian Institute of Technology, Kanpur.},
	address = {IIT Kanpur.},
	url = {http://nptel.ac.in/courses/105104132/Module2/lecture9.pdf}
}