@book{5353,
	author = {Maidl, Bernhard and Thewes, Markus},
	title = {Handbook of tunnel engineering II :},
	publisher = {Wilhelm Ernst & Sohn,},
	year = {c 2014.},
	address = {Germany :},
	url = {https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/9783433603536?download=true}
}