<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>27</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lehn, G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aspen biomass productivity - genotype versus phenotype. In : B. P. Dancik and K. O. Higginbotham, eds., Proc. Sixth North Am. For. Biol. Workshop, August 11-13, 1980, Edmonton, Alberta</style></title></titles><dates><year><style  face="normal" font="default" size="100%">1980</style></year></dates><publisher><style face="normal" font="default" size="100%">Soc. Am. For.</style></publisher><pub-location><style face="normal" font="default" size="100%">Bethesda, MD</style></pub-location><language><style face="normal" font="default" size="100%">en</style></language><custom1><style face="normal" font="default" size="100%">Forestry</style></custom1><custom4><style face="normal" font="default" size="100%">Science</style></custom4></record></records></xml>