@book{655,
	author = {Singh, L.P  and Singh L.P},
	title = {Digital Protection: Protective Relaying from Electromechanical to Microprocess},
	publisher = {John Wiley $ Son},
	year = {1994.},
	address = {New Delhi},
	url = {http://10.10.170.122:8080/browse/book/27654}
}