Mega, V. P., & Petrella, R. (1997). Utopias and realities of urban sustainable development: New alliances between economy, environment and democracy for small and medium-sized cities : conference proceedings Turin-Barolo 19-21 September 1996. Dublin: European Foundation for the Improvement of Living and Working conditions.

Mega, Voula P., and Riccardo Petrella. Utopias and Realities of Urban Sustainable Development: New Alliances between Economy, Environment and Democracy for Small and Medium-sized Cities : Conference Proceedings Turin-Barolo 19-21 September 1996. Dublin: European Foundation for the Improvement of Living and Working conditions, 1997.

Mega, Voula P., and Riccardo Petrella. Utopias and Realities of Urban Sustainable Development: New Alliances between Economy, Environment and Democracy for Small and Medium-sized Cities : Conference Proceedings Turin-Barolo 19-21 September 1996. Dublin: European Foundation for the Improvement of Living and Working conditions, 1997.