Lessons from Wind Policy in Portugal 8.56
Ivonne Peña, Inês Lima Azevedo, Luis Antonio Marcelino Ferreira
Energy Policy, vol. 103, 2017, p. 193-202.

Economic Analysis of the Profitability of Existing Wind Parks in Portugal 10.75
Ivonne Peña, Inês Lima Azevedo, Luis Antonio Marcelino Ferreira
Energy Economics, vol. 45, 2014, p. 353-363.