Eckl, F (Corresponding Author), Univ Stuttgart, Inst Energy Econ & Rat Energy Use IER, Hessbruhlstr 49a, D-70569 Stuttgart, Germany.
Eckl, Florentin; Eltrop, Ludger, Univ Stuttgart, Inst Energy Econ & Rat Energy Use IER, Hessbruhlstr 49a, D-70569 Stuttgart, Germany.
Moita, Ana; Neto, Rui Costa, Univ Lisbon, IST, IN Ctr Innovat Technol & Policy Res, Ave Rovisco Pais, Lisbon, Portugal.
Moita, Ana, Mil Univ Inst, Mil Acad Res Ctr, Portuguese Mil Acad, CINAMIL, Lisbon, Portugal.