1. Efficiency performance and cost structure of Portuguese energy "utilities" – Non-parametric and parametric analysis. (15th July 2018) Authors: Rita, Rui; Marques, Vitor; Lúcia Costa, Ana; Matos Chaves, Inês; Gomes, Joana; Paulino, Paulo Journal: Energy Issue: Volume 155(2018) Page Start: 35 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗