14.
Percy K., Awmack C., Lindroth R., Kubiske M., Kopper B., Isebrands J., Pregitzer K., Hendrey G., Dickson R., Zak D., Oksanen E., Sober J., Harrington R., Karnosky D. 2002. Altered performance of forest pests under atmospheres enriched by CO2 and O3. Nature, 420, 403–407.