@inproceedings{SchwarzerHafnerMeeretal.1993,
  author    = {Schwarzer, Klemens and Hafner, B. and Meer, A. von and Krings, T.},
  title     = {Simulation and dimensioning program for solar cookers with temporal heat storage and comparison with measurements},
  series = {Harmony with nature : : proceedings / ISES Solar World Congress, Budapest 1993. International Solar Energy Society, Hungarian Section (H-ISES); Hungarian Solar Energy Society (HSES). Bd 5: Active systems},
  booktitle = {Harmony with nature : : proceedings / ISES Solar World Congress, Budapest 1993. International Solar Energy Society, Hungarian Section (H-ISES); Hungarian Solar Energy Society (HSES). Bd 5: Active systems},
  publisher = {Hungarian Energy Society},
  address   = {Budapest},
  pages     = {473 -- 478},
  year      = {1993},
  language  = {en}
}
@inproceedings{SchwarzerKringsFaberetal.1998,
  author    = {Schwarzer, Klemens and Krings, T. and Faber, Christian and Hafner, B.},
  title     = {Erfahrungen mit Solarkochern verschiedener Gr{\"o}ße f{\"u}r Familien und Institutionen},
  series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum},
  booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum},
  publisher = {Solar Promotion},
  address   = {M{\"u}nchen},
  organization    = {Deutsche Gesellschaft f{\"u}r Sonnenenergie},
  pages     = {801 -- 809},
  year      = {1998},
  language  = {de}
}
@article{VelrajSeenirajHafneretal.1999,
  author    = {Velraj, R. and Seeniraj, R. V. and Hafner, B. and Faber, Christian and Schwarzer, Klemens},
  title     = {Heat transfer enhancement in a latent heat storage system},
  series = {Solar energy. Vol. 65, iss. 3},
  journal   = {Solar energy. Vol. 65, iss. 3},
  issn      = {0038-092X},
  pages     = {171 -- 180},
  year      = {1999},
  language  = {en}
}
@inproceedings{SpaeteHafnerSchwarzer2000,
  author    = {Sp{\"a}te, Frank and Hafner, B. and Schwarzer, Klemens},
  title     = {A system for solar process heat for decentralized applications in developing countries},
  series = {ISES 1999 Solar World Congress, Jerusalem, Israel, July 4-9, 1999 : conference proceedings / ed. Gershon Grossman. Vol. 3},
  booktitle = {ISES 1999 Solar World Congress, Jerusalem, Israel, July 4-9, 1999 : conference proceedings / ed. Gershon Grossman. Vol. 3},
  publisher = {Elsevier},
  address   = {Oxford},
  isbn      = {0-080-043895-4},
  pages     = {236 -- 291},
  year      = {2000},
  language  = {en}
}