Barnard, David M., Frederick C Meinzer, Barbara Lachenbruch, Katherine A McCulloh, Daniel M Johnson, and David R Woodruff. 2011. Climate-Related Trends In Sapwood Biophysical Properties In Two Conifers: Avoidance of Hydraulic Dysfunction Through Coordinated Adjustments In Xylem Efficiency, Safety, and Capacitance. : Blackwell.