Researchers Research team Raquel Dormido Canto (IP) – UNEDLuis de la Torre Cubillo (IP) – UNEDJosé Manuel Díaz Martínez – UNEDErnesto Fábregas Acosta – UNEDJacobo Sáenz Valiente – UNED Work team Sebastián Dormido Bencomo – UNEDRafael Socas Gutiérrez – TelefónicaAntonio Visioli – University of BresciaZhongcheng Lei – University of Wuhan