@article {KNZ00676, title = {Influence of differing land management on the invasion of North American tallgrass prairie soils by European earthworms}, journal = {Pedobiologia}, volume = {43}, year = {1999}, pages = {507 -512}, keywords = {LTER-KNZ, tallgrass prairie}, author = {Callaham, M.A. Jr. and John M. Blair} }