1. A study of the nervous system of the Sipunculoidea;Åkesson;Undersoknigar Over Oresund,1958
2. Particularités histochimiques du tube digestif des Phascolion strombi (Mont.);Arvy;Bull. Lab. Marit. Dinard,1952
3. Systematics and phylogeny: Annelida, Echiura, Sipuncula;Clark,1969
4. Biochemical studies on Lissomyema exilii (F. Müller, 1883), (Echiura);De Jorge;Comp. Biochem. Physiol.,1969
5. Accumulation of “glycogens” in the genital region of Balanoglossus gigas;De Jorge;Comp. Biochem. Physiol.,1968