Andrassy, Juraj Keywords: Transfrontier co-operation | International relations | Rights and duties of States | Mots clefs: Coopération transfrontalière | Relations internationales | Droits et devoirs des Etats | ABSTRACT Juraj Andrassy points out in the introduction to his course that if the international law contains provisions on the right of neighborhood in the sense of the mandatory rules applicable to cases of damage caused by cross-border facts, it must be recognized that these rules cover only a very modest field of a…