<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tree Growth and Solar Cycles</style></title><secondary-title><style face="normal" font="default" size="100%">Paper Presented at International Research Council</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">astronomy</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">solar cycles</style></keyword><keyword><style  face="normal" font="default" size="100%">tree growth</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1931</style></year></dates><notes><style face="normal" font="default" size="100%">Copies of this are available through the Tree Ring Laboratory. Please contact the curator for more information. pcreasman@ltrr.arizona.edu</style></notes></record></records></xml>