1. The minimum programme for estimating the primary biological productivity of terrestrial plant communities (in Russian);Alekseev;Rastit. Resursy,1967
2. The importance of the study of biomorphological features of plants for the development of methods of recording their biological productivity (in Russian);Borisova;Bot. Zhurnal,1966
3. A contribution to the measurement of primary production in the herb layer of forest communities (in Slovak). (Príspevok k meraniu primárnej produkcie bylinnej vrstvy lesných spoločenstiev.);Brechtl;Biológia (Bratislava),1968
4. ČSN 44 1352, 1967. Estimation of heat of combustion and calorific value of solid fuels (in Czech). (Stanovení spalného tepla a výhřevnosti tuhých paliv.) Ústav normal., Praha, 12 pp.
5. Flora of Czechoslovakia (in Czech). (Klíčk úplné květeně ČSSR.);Dostál,1958