@inproceedings{SchwarzerFaberMelissetal.2013, author = {Klemens Schwarzer and Christian Faber and Michael Meliß and F. Sp{\"a}te}, title = {Solar-Institut J{\"u}lich (SIJ), Fachhochschule Aachen, Division J{\"u}lich Germany}, booktitle = {Harmony with nature : proceedings / ISES Solar World Congress, Budapest 1993. International Solar Energy Society, Hungarian Section (H-ISES); Hungarian Solar Energy Society (HSES). Vol. 1: Energy policy, environment, education}, pages = {349 -- 354}, year = {2013}, }