Ernesto Castro Leal https://www.cepese.pt/portal.%26%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22/en/publications/authors/ernesto-castro-leal https://www.cepese.pt/portal.%26%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22/@@site-logo/CEPESE+home.png Ernesto Castro Leal Faculty of Letters of Lisbon University History Centre of Lisbon University Artigos Parties and Political Identity: the Construction of the Party System of the Portuguese Republic (1910-1926) 2009