@Article{bg-4-581-2007, AUTHOR = {Belelli Marchesini, L. and Papale, D. and Reichstein, M. and Vuichard, N. and Tchebakova, N. and Valentini, R.}, TITLE = {Carbon balance assessment of a natural steppe of southern Siberia by multiple constraint approach}, JOURNAL = {Biogeosciences}, VOLUME = {4}, YEAR = {2007}, NUMBER = {4}, PAGES = {581--595}, URL = {http://www.biogeosciences.net/4/581/2007/}, ISSN = {1726-4170} }