@article{Dittler,
  author    = {Ullrich Dittler},
  title     = {Sonnenbeobachtung in der dritten Generation: Das SolarMax III 70mm von Coronado im Praxis-Check},
  series = {Abenteuer Astronomie},
  number    = {17},
  issn      = {2366-3944},
  pages     = {56 -- 58},
  language  = {de}
}