Urban Public Transport in Europe: Technology Diffusion and Market Organisation
Álvaro Costa, Ruben Fernandes
Transportation Research Part A: Policy And Practice, vol. 46, 2012, p. 269-284.

Partnership Diversity and Governance Culture: Evidence from Urban Regeneration Policies in Portugal
Isabel Breda-Vazquez, Paulo Conceição, Ruben Fernandes
Urban Studies, vol. 46, 2009, p. 2213-2238.