1. The genetic variation pattern of silver fir (Abies alba) in Europe monitored from enzyme gene loci;Bergmann,1988
2. Genetische Variation in verschiedenen Arealen der Weißtanne Abies alba Mill.;Bergmann;Schr. Forstl. Fak. Göttingen,1990
3. Interpretation of the composition of coniferous resin;Birks;Silvae Genetica,1988
4. SPSS/PC + Basics und Graphics;Brosius,1988