Stem wood properties in Populus tremuloides clones, Betula papyrifera and Acer saccharum after three years of treatments to elevated carbon dioxide and ozone - Kaakinen, S.; Kostiainen, K.; Ek, F.; Saranpää, P.; Isebrands, J.G.; McDonald, E.P.; Sober, J.; Karnosky, D.F.; Vapaavuori, E. (UK, 2004)
Keywords: Acer saccharum; Betula papyrifera; Populus tremuloides; hiilidioksidi; otsoni; runkopuun ominaisuudet