1. The ecology, management, and benefits of earthworms in agricultural soils, with particular reference to southern Australia;Baker,1998
2. Single-tree influence on earthworms in forest soils in eastern Kentucky;Boettcher;Soil Science Society of America Journal,1991
3. Strategies lombriciennes;Bouché,1977
4. Influence of differing land management on the invasion of North American tallgrass prairie soils by European earthworms;Callaham;Pedobiologia,1999
5. Water potential: miscellaneous methods;Campbell,1986