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3. Taxonomy and faunal relations of the limnitic Oligochaeta of China;Chen Y.;Contr. biol. lab. Sci. Soc. China Zool.,1940
4. Sur la presence dans la Meuse Belge de Branchiura sowerbyi, Crespedacusta sowerbyi et Urnatella gracillis;Dammas H.;Annls Soc. r. zool. Beige,1938
5. The activity and metabolism of poikilothermal animals in different latitudes;Fox H. M.;Proc. zool. Soc. Lond.,1930