Most Popular Books
- Herbivory of Leaf-Cutting Ants: A Case Study on Atta colombica in the Tropical Rainforest of Panama
- Progress in Botany: Structural Botany Physiology Genetics Taxonomy Geobotany/Fortschritte Der Botanik Struktur Physiologie Genetik Systematik Geobotanik
- Bericht Uber Die Jahre 1949 1950
- Bericht Uber Das Jahr 1954
- Bericht Uber Das Jahr 1952