Proceedings of right light bright light 1st european conference on energy-efficiencyefficient lightning. Energy efficient lightning : the pilot retrofit at Ericsson Telecom AB`S factory. European Conference on Energy-Efficient Lighting [1, 29-30 May. 1991, Stockholm]. |
ENERGY AFTER RIO / PROSPECTS AND CHALLENGES Amulya K.N. Reddy; Robert H. Williams; Thomas B. Johansson.; |