@book{UBHD-9909973,
  author={Haag, Martin},
  title={Plattformunabh{\"a}ngige, adaptive Lehr-/Lernsysteme f{\"u}r die medizinische Aus- und Weiterbildung},
  year={1999},
  pages={VIII, 179 S.},
  language={ger},
  note={Nicht f. d. Austausch},
  school={Heidelberg, Univ., Diss., 1999},
  library={UB [Signatur: 99 U 313]},
}
@article{UBHD-68404066,
  author={Haag, Martin and Maylein, Leonhard and Leven, Franz-Josef and T{\"o}nshoff, Burkhard and Haux, Reinhold},
  title={Web-based training},
  subtitle={a new paradigm in computer-assisted instruction in medicine},
  year={1999},
  pages={79-90},
  language={eng},
  issn={1872-8243},
  volume={53},
  number={1},
  note={Gesehen am 03.07.2019},
  journal={International journal of medical informatics},
  doi={10.1016/S1386-5056(98)00118-X},
}
@incollection{UBHD-67600858,
  author={Ruderich, Franz and Haag, Martin and Heid, J{\"o}rn and J{\"u}nger, Jana and T{\"o}nshoff, Burkhard},
  title={CAMPUS - a flexible, interactive system for web-based, problem-based learning in health care},
  year={2004},
  pages={921-925},
  language={eng},
  isbn={1586034448},
  booktitle={MEDINFO 2004},
  editor={Fieschi, Marius and Coiera, Enrico},
}