@article{FischerMatthiesSchmid1997,
  author    = {Fischer, Markus and Matthies, D. and Schmid, Bernhard},
  title     = {Responses of rare calcareous grassland plants to elevated CO2: a field experiment with Gentianella germanica and Gentiana cruciata},
  year      = {1997},
  language  = {en}
}
@article{FischerMatthies1998,
  author    = {Fischer, Markus and Matthies, D.},
  title     = {Effects of population size on performance in the rare plant Gentianella germanica},
  year      = {1998},
  language  = {en}
}
@article{FischerMatthies1998,
  author    = {Fischer, Markus and Matthies, D.},
  title     = {Experimental demography of the rare Gentianella germanica: seed bank formation and microsite effects on seedling etasblishment},
  year      = {1998},
  language  = {en}
}
@article{FischerMatthies1998,
  author    = {Fischer, Markus and Matthies, D.},
  title     = {RAPD variation in relation to population size and plant performance in the rare Gentianella germanica (Gentianceae)},
  year      = {1998},
  language  = {en}
}
@article{FischerMatthies1997,
  author    = {Fischer, Markus and Matthies, D.},
  title     = {Mating structure and inbreeding and outbreeding depression in the rare plant Gentianella germanica (Gentianaceae)},
  year      = {1997},
  language  = {en}
}
@article{FischerKeryMatthies2001,
  author    = {Fischer, Markus and K{\´e}ry, M. and Matthies, D.},
  title     = {The effect of plant population size on the interactions between the rare plant Gentiana cruciata and its specialized herbivore Maculinea rebeli},
  year      = {2001},
  language  = {en}
}