1. Étude morphologique sur les coelomocytes des échinides reguliers;Abraham;Israel J. Zool,1963
2. La coagulation dans le liquide periviscéral des échinides étudiée à l'aide du microscope à contrast de phase;Abraham;Pubbl. Sta. Zool. Napoli,1964
3. Phase microscope studies of living blood-cells of the tunicates under normal and experimental conditions, with a description of a new type of motile cell appendage;Andrew;Quart. J. Microscop. Sci,1961
4. Syncytial structures in sponge larvae and lymph plasmodia of sea urchins;Boliek;J. Elisha Mitchell Sci. Soc,1935
5. Cell types and clotting reactions in the echinoid, Mellita quinquiesperforata;Bookhout;Biol. Bull,1940