TY  - JOUR
A1  - Fischer, Markus
A1  - Matthies, D.
T1  - Mating structure and inbreeding and outbreeding depression in the rare plant Gentianella germanica (Gentianaceae)
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Fischer, Markus
A1  - Matthies, D.
A1  - Schmid, Bernhard
T1  - Responses of rare calcareous grassland plants to elevated CO2: a field experiment with Gentianella germanica and Gentiana cruciata
Y1  - 1997
ER  -