@article{Meliss1993,
  author    = {Meliß, Michael},
  title     = {Regenerative Energiequellen},
  series = {Brennstoff, W{\"a}rme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 45 (1993), H. 4},
  journal   = {Brennstoff, W{\"a}rme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 45 (1993), H. 4},
  issn      = {0006-9612},
  pages     = {155 -- 164},
  year      = {1993},
  language  = {de}
}
@article{GoettscheHinschWittwer1993,
  author    = {G{\"o}ttsche, Joachim and Hinsch, Andreas and Wittwer, Volker},
  title     = {Electrochromic mixed WO3-TiO2 thin films produced by sputtering and the sol-gel technique : a comparison / J. G{\"o}ttsche ; A. Hinsch ; V. Wittwer},
  series = {Solar Energy Materials and Solar Cells. 31 (1993), H. 3},
  journal   = {Solar Energy Materials and Solar Cells. 31 (1993), H. 3},
  isbn      = {0927-0248},
  pages     = {415 -- 428},
  year      = {1993},
  language  = {en}
}