1. In Memorian—Donald R. Nielsen (1931–2020). IUSS Alert No. 182 (August 2020);Hopmans,2020
2. This week's citation classic: Nielsen, D.R., Biggar, J.W., and Erh, K.T. Spatial variability of field-measured soil-water properties. Hilgardia 42 215–259. 1973;Curr. Cont. Agr. Biol. Environ. Sci.,1983
3. Trace Elements in Soil. Bioavailability, Flux, and Transfer,2001
4. Soil Physics;Jury,2004
5. Soil Physics;Jury,1991