(Department of Modern, Contemporary and American History, Faculty of Geography and History, University of Valladolid)
(Department of Modern, Contemporary, America and Art History, Faculty of Philosophy and Letters, University of Cádiz)
(Institut of History, Institut for Human Sciencies, University of Brasilia)
(Department of Contemporary History, Faculty of Arts, Languages and Human Sciences, University of Orléans)
(Center for Basque Studies, University of Nevada)
(Commission for the History of the Parliaments and Political Parties)
(Philosophy, Faculty of Philosophy, UNED)
(Department of Modern and Contemporary History, Faculty of Philosophy and Letters, University Autonomus of Barcelona)
(History of Parliament Trust)
