1. Effects of weightlessness on the nutrition and growth of Pelomyxa carolinensis;Abel;NASA (Special Publ.) SP,1971
2. Navigation of nonneural cells. The role of intercellular signals, navigation, encounter, outcome;Albrecht-Bühler,1979
3. Circular statistics in biology;Batschelet,1981
4. Microbial geotaxis;Bean,1984
5. The ultrastructure of the Müller body in Remanella (Ciliata Holotricha Loxodidae);Bedini;Monitore Zool. Ital.,1973