1. On the histological differentiation of the larvae of Pisione remota (Pisionidae, Polychaeta);ÅKESSON;Acta Zool., Stockholm,1961
2. The embryology of Tomopteris helgolandica;ÅKESSON;Acta Zool., Stockholm,1962
3. The comparative morphology and embryology of the head in scale worms (Aphroditidae, Polychaeta);ÅKESSON;Ark. Zool.,1963
4. The embryology of the polychaete Eunice kobiensis;ÅKESSON;Acta Zool., Stockholm,1967
5. On the nervous system of the Lopadorhynchus larva (Polychaeta);ÅKESSON;Ark. Zool.,1967