1. Helicase was provided by l'Industrie Biologique Française Genevilliers
2. Adelung, D., Karlson, P.: J. Insect Physiol. 15, 1301 (1969)
3. Delbecque, J.P., et al.: C.R. Acad. Sci (Paris) 281, 309 (1975)
4. Hikino, H., Takemoto, T., in: Burdette, W.: Invertebrate Endocrinology and Hormonal Heterophylly. Berlin-Heidelberg-New York: Springer 1974
5. Spindler, K.D., et al.: Hoppe-Seylers Z. Physiol. Chem. 359, 1269 (1978)