Špunda, V., Kalina, J., Urban, O., Marek, M. V., Luis Díaz, V. Diurnal dynamics of photosynthetic parameters of Norway spruce (Picea abies) cultivated under elevated CO2. - I. Inhibition of CO2 assimilation during summer day. Acta Physiologiae Plantarum. 2004, 26(3), 107-107. ISSN 0137-5881. E-ISSN 1861-1664.