Zoller, Elisabeth Keywords: Federal states | Constitutional law | International law and domestic law | Mots clefs: Etats fédéraux | Droit constitutionnel | Droit international et droit interne | ABSTRACT Elizabeth Zoller, Professor at the University of Paris II, examines in this course the ability of an internal constitutional system to contain international elements. Federalism, so argues Professor Zoller, is an international process par excellence, insofar as its object is to bring people and States closer together, withou…