'Dataset of Italian Municipal Unions (Intermunicipal Cooperation forms). 1996-2015.' is available with DOI 10.7802/1754 at GESIS - Data Archive for the Social Sciences.
Primary researchers of this study are: Bolgherini, Silvia; University of Naples Federico II Casula, Mattia; University of Venice Ca'Foscari Marotta, Mariano; University of Calabria