TY - RPRT TI - Forest stand structure, productivity, and age mediate climatic effects on aspen decline AU - David M. Bell AU - John B. Bradford AU - William K. Lauenroth PY - 2014 DO - 10.1890/14-0093.1 UR - https://pubs.usgs.gov/publication/70120495 ID - 70120495 ER -