Authors: Donegan, KK Watrud, LS Seidler, RJ Maggard, SP Shiroyama, T Porteous, LA DiGiovanni, G

Citation: Kk. Donegan et al., Soil and litter organisms in Pacific northwest forests under different management practices, APPL SOIL E, 18(2), 2001, pp. 159-175

Authors: Shaffer, BT Widmer, F Porteous, LA Seidler, RJ

Citation: Bt. Shaffer et al., Temporal and spatial distribution of the nifH gene of N-2 fixing bacteria in forests and clearcuts in western Oregon, MICROB ECOL, 39(1), 2000, pp. 12-21

Authors: Widmer, F Shaffer, BT Porteous, LA Seidler, RJ

Citation: F. Widmer et al., Analysis of nifH gene pool complexity in soil and litter at a Douglas fir forest site in the Oregon Cascade Mountain Range, APPL ENVIR, 65(2), 1999, pp. 374-380

Authors: Donegan, KK Seidler, RJ Doyle, JD Porteous, LA Digiovanni, G Widmer, F Watrud, LS

Citation: Kk. Donegan et al., A field study with genetically engineered alfalfa inoculated with recombinant Sinorhizobium meliloti: effects on the soil ecosystem, J APPL ECOL, 36(6), 1999, pp. 920-936