Book Review: An Ever More Complex Union: the Regional Variable as a Missing Link in the EU Constitution?, edited by Roberto Toniatti, Francesco Palermo, Marco Dani. (Baden-Baden: Nomos, 2004) - Common Market Law Review View Book Review: An Ever More Complex Union: the Regional Variable as a Missing Link in the EU Constitution?, edited by Roberto Toniatti, Francesco Palermo, Marco Dani. (Baden-Baden: Nomos, 2004) by - Common Market Law Review Book Review: An Ever More Complex Union: the Regional Variable as a Missing Link in the EU Constitution?, edited by Roberto Toniatti, Francesco Palermo, Marco Dani. (Baden-Baden: Nomos, 2004) 43 2 Common Market Law Review