Historic vegetation of the Tualatin River Basin..
Exploring the Tualatin River Basin: a Nature and Recreation Guide.. :144.
Checklist of Mosses of Oregon.
Institute for Natural Resources, Portland, Oregon. :39.
Using state-and-transition models to project cheatgrass and juniper invasion in southeastern Oregon sagebrush steppe.
Proceedings of the First Landscape State-and-Transition Simulation Modeling Conference, June 14–16, 2011, Portland, Oregon. :73-84.