@book{10937,
	author = { Patra, Nihar Ranjan.	},
	title = {Advance Geotechnological Engineering (Pdf Lecture Series)},
	publisher = {Indian Institute of TEchnology ,Kanpur.},
	address = {IIT Kanpur},
	url = {http://nptel.ac.in/courses/105104132/Module4/lecture26.pdf}
}