TY - BOOK AU - Christian Tomuschat AU - Jean-Marc Thouvenin TI - Fundamental Rules of the International Legal Order : Jus Cogens and Obligations Erga Omnes SN - 90-04-149813 U1 - 341 PY - 2006/// CY - Leiden PB - Martinus Nijhoff Publishers KW - INTERNATIONAL LAW ER -