D. Sillman

Earthworm and soil microarthropod responses to oily waste application

R. Loehr, E. Neuhauser, R. A. Norton, 1989 .

Impact of oily waste application on the mite community on an arable soil

R. A. Norton, D. Sillman, 1985, Experimental & Applied Acarology.

Influence of earthworm middens on the distribution of soil microarthropods

W. E. Hamilton, D. Sillman, 1989, Biology and Fertility of Soils.