1. Carbon dioxide and nitrogenous gases in the soil atmosphere;Amundson;Journal of Geochemical Exploration,1990
2. The formation of carbonate nodules and intercalary crystals in the soil by the earthworm Lumbricus rubellus;Bal;Pedobiologia,1977
3. Origin of calcium carbonate granules found in buried soils and quaternary deposits;Canti;Boreas,1998
4. Étude du role de la glande de Morren des Lombriciens dans la régulation de l’eau;Chapron;Journal de Miscroscopie,1971
5. Histologische Untersuchungen über den Regenwurm;Claparède;Zeitschrift für Wissenschaftliche Zoologie,1869