<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>27</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Neufeld, Howard S</style></author><author><style face="normal" font="default" size="100%">Renfro, James R</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sensitivity of Sycamore Seedlings (Platanus occidentalis) to Ozone in Great Smoky Mountains National Park Data from 1989</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Air pollution</style></keyword><keyword><style  face="normal" font="default" size="100%">Ozone</style></keyword><keyword><style  face="normal" font="default" size="100%">Trees</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1993</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">U. S. Department of the Interior, National Park Service</style></publisher><isbn><style face="normal" font="default" size="100%">Technical Report NPS/NRTR-93/131</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record></records></xml>