Hobsbawm, E.J. (1993). The Objectives and programmes of popular politics in this period before the elaboration of the modern vocabulary, the modern aims and the modern methods of political action. A 'Seminari Eric Hobsbawm'. Girona: La Universitat. [Consulta: 27 abril 2009]. Disponible a: http://hdl.handle.net/10256.1/1048