@book{UBHD-65957120,
  author={Ratzka, Thorsten},
  title={High spatial resolution observations of young stellar binaries},
  year={2005},
  pages={Online-Ressource (186 S.)},
  language={eng},
  school={Heidelberg, Univ., Diss., 2005},
  doi={10.11588/heidok.00005516},
  keywords={Speckle-Interferometrie / Doppelstern / Mehrfachstern / Junger Stern},
  url={http://www.ub.uni-heidelberg.de/archiv/5516},
  library={UB},
}
@book{UBHD-65950939,
  author={Ratzka, Thorsten},
  title={High spatial resolution observations of young stellar binaries},
  year={2005},
  pages={183 S.},
  language={eng},
  note={Zsfassung in dt. Sprache},
  school={Heidelberg, Univ., Diss., 2005},
  keywords={Speckle-Interferometrie / Doppelstern / Mehrfachstern / Junger Stern},
  library={UB [Signatur: 2005 U 395] ; PY [Signatur: <PY> PY Diss. SS05-6]},
}