Peter D. Crittenden

1. Multiple indicators of human impacts on the environment in the Pechora Basin, north-eastern European Russia
   2008/11/12 by Tony R. Walker, Tony R. ‎Walker, P. D. Crittenden +20 · 3 citations
   Environmental Science · Health Professions · #Indigenous Studies and Ecology #Rangeland and Wildlife Management #Wildlife-Road Interactions and Conservation
2. On nitrogen fixation in lichens with unicellular cyanobionts
   2026/07/29 by Peter D. Crittenden, P. D. Crittenden, Barry Thornton +1
   Agricultural and Biological Sciences · #Biocrusts and Microbial Ecology #Bryophyte Studies and Records #Lichen and fungal ecology