00402nam a2200121la 450000500170000000800370001702000150005405000220006910000180009124501150010926000480022430000080027220260128043414.0251201s9999 xx 000 0 und d a9041104585 aKZ 1277bVIL 1997 aMark Villiger aCustomary international law and treaties : a manual on the theory and practice of the interrelation of sources aNetherlandsbKluwer Law Internationalc1997 a346