@book{92455,
	author = {Porathur, John Loui, and Karekal, Shivakumar,},
	title = {Highwall mining :},
	publisher = {CRC Press/Balkema,},
	year = {[2017]},
	address = {Leiden, The Netherlands :},
	url = {https://www.taylorfrancis.com/books/9781315171234}
}