1. Anderson, J. P. E., 1982: Soil respiration. In: Page A. L., Miller R. H., Keeney, D. R. (eds.)Methods of Soil Analysis. Part 2. Chemical and Microbiological Properties. 2nd ed. American Society of Agronomy, Soil Science Society of America, Madison, Wisconsin, pp. 831?871.
2. Brown, L. F., Trlica, M. J., 1977: Carbon dioxide exchange of blue grama swards as influenced by several ecological variables in the field.J. Appl. Ecol. 14, 204?213.
3. Hulbert, L. C., 1969: Fire and litter effects in undisturbed bluestem prairie in Kansas.Ecology 50, 874?877.
4. Jantz, D. R., Harner, R. F., Rowland, H. T., Gier, D. A., 1975: Soil survey of Riley County and part of Geary County, Kansas. United States Department of Agriculture, Soil Conservation Service and Kansas State University Agricultural Experiment Station, Manhattan, Kansas, 71 pp. + maps.
5. Jarvis, P. G., ?atský, J., 1971: Gas exchange systems. In: ?esták, Z., ?atský, J., Jarvis, P. G., (eds),Plant photosynthetic production. Manual of Methods. Dr. W. Junk, The Hague, The Netherlands, pp. 50?56.