1. Influence of pinyon trees on soil chemical and physical properties;Barth;Soil Science Society of America Journal,1980
2. Bates, J. D. 1996, Understory vegetation response and nitrogen cycling following cutting of western juniper, Oregon State University, Corvallis Oregon
3. Bates, J. D. Miller, R. F. Svejcar, T. S. 1999, Plant succession in cut juniper woodlands (1991–1998). Juniper Woodlands: History, Ecology and Management, Oregon State University, 1002
4. Understory dynamics in cut and uncut western juniper woodlands;Bates;Journal of Range Management,2000
5. The components of nitrogen availability assessments in forest soils;Binkley,1989