@book{23146,
	author = {Gaebler, Ralph.},
	title = {Sources of state practice in international law /},
	publisher = {Brill-Nijhoff,},
	year = {[2014]},
	address = {Leiden ;},
	edition = {Second rev. ed.},
	url = {http://dx.doi.org/10.1163/9789004272224}
}