@book{UBHD-66532982,
  author={Janson, Markus},
  title={Direct imaging searches for substellar companions to nearby stars},
  year={2008},
  pages={Online-Ressource},
  language={eng},
  school={Heidelberg, Univ., Diss., 2008},
  doi={10.11588/heidok.00008390},
  keywords={Extrasolarer Planet},
  url={3},
  library={UB},
}
@book{UBHD-66526895,
  author={Janson, Markus},
  title={Direct imaging searches for substellar companions to nearby stars},
  year={2008},
  pages={VIII, 145 S.},
  language={eng},
  note={Zsfassung in dt. Sprache},
  school={Heidelberg, Univ., Diss., 2008},
  keywords={Extrasolarer Planet},
  library={UB [Signatur: 2008 U 422] ; PY [Signatur: <PY> PY Diss. SS08-30]},
}