@book{43344,
	author = {Kolb,Robert and Georges Abi-Saab},
	title = {Theorie Du Ius Cogens International :},
	publisher = {DE L'INSTITUT UNIVERSITAIRE DE HAUTES ÉTUDES INTERNATIONALES ,},
	year = {2001.},
	address = {Geneve :},
	edition = {1ed},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-00247.pdf}
}