“Fire History In Riparian Canyon Pine-Oak Forests And The Intervening Desert Grasslands Of The Southwest Borderlands: A Dendroecological, Historical, And Cultural Inquiry”. School Of Renewable Natural Resources. School Of Renewable Natural Resources. Tucson: University of Arizona.. 1998.
“Spatial Relationships In Frost-Damaged High-Elevation Pines And Links To Major Volcanic Eruptions”. Geoscience. Geoscience. Tucson: University of Arizona.. 2001.