Paulo Ávila
(1), Bebiana Santos
(2), Alzira Mota
(3), Hélio Castro
(4), Luís Pinto Ferreira
(5), João Bastos
(6), José Carlos Sá
(7), Joaquim Moreira
(8), António Duarte Santos
(9), Gilberto Santos
(10)
(1)
INESC TEC, ISEP, Polytechnic of Porto, Portugal,
(2)
ISEP, Polytechnic of Porto, Portugal,
(3)
NESC TEC, ISEP, Polytechnic of Porto, Portugal,
(4)
ISEP, Polytechnic of Porto, Portugal,
(5)
LAETA-INEGI, ISEP, Polytechnic of Porto, Portugal,
(6)
INESC TEC, ISEP, Polytechnic of Porto, Portugal,
(7)
LAETA-INEGI, ISEP, Polytechnic of Porto, Portugal,
(8)
ISEP, Polytechnic of Porto, Portugal,
(9)
Autonomous University of Lisbon and CARS—Centre for Economic Analysis of Social Regulation, Department of Economic and Business Sciences , Portugal,
(10)
Instituto Politécnico Cavado Ave, Portugal