@misc{Fregin2005,
  author    = {Fregin, Achim},
  title     = {Optimierung eines Systems zur solaren Trinkwassererw{\"a}rmung},
  url       = {https://nbn-resolving.org/urn:nbn:de:gbv:916-opus4-78},
  pages     = {67},
  year      = {2005},
  abstract  = {kein Abstract vorhanden},
  subject      = {Solarenergie},
  language  = {de}
}