<?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%">Wedin, DA</style></author><author><style face="normal" font="default" size="100%">Tilman, D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of nitrogen loading and species composition on the carbon balance of grasslands. Science 274:1720-1723. (Highlighted in Science Environment 274:1610-1611 by J. Kaiser, and The New York Times December 10, 1996.)</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CDR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1996</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.1996-7104</style></accession-num></record></records></xml>