<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Fenn, M. E.</style></author><author><style face="normal" font="default" size="100%">Lambert, K.F.</style></author><author><style face="normal" font="default" size="100%">Blett, T.</style></author><author><style face="normal" font="default" size="100%">Burns, D.A.</style></author><author><style face="normal" font="default" size="100%">Pardo, L. H.</style></author><author><style face="normal" font="default" size="100%">Lovett, Gary M.</style></author><author><style face="normal" font="default" size="100%">Haeuber, R.</style></author><author><style face="normal" font="default" size="100%">Evers, D.C.</style></author><author><style face="normal" font="default" size="100%">Driscoll, Charles T.</style></author><author><style face="normal" font="default" size="100%">Jeffries, D.S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Setting limits: Using air pollution thresholds to protect and restore U.S. ecosystems</style></title><secondary-title><style face="normal" font="default" size="100%">Issues in Ecology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.esa.org/science_resources/issues/FileEnglish/issuesinecology14.pdf</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Ecological Society of America</style></publisher><pages><style face="normal" font="default" size="100%">1-21</style></pages><issue><style face="normal" font="default" size="100%">14</style></issue></record></records></xml>