1. Über die Korpergliederung, die Haut und die Tracheenorgane der Termitenkönigin;Ahrens;Z. Naturw.,1930
2. Stress-strain relationship for wood in transverse compression;Bodig;J. Materials,1966
3. A study of the physical and chemical properties of the insect cuticle;Fraenkel,1940
4. The structure of insect cuticles;Fraenkel,1947