Carbon flux bias estimation employing Maximum Likelihood Ensemble Filter (MLEF)
Zupanski, D. A. S. Denning, M. Uliasz, M. Zupanski, A. E. Schuh, P. J. Rayner, W. Peters, and K. D. Corbin
J. Geophys. Res., 112, D17107, DOI: 1029/2006JD008371
Read more at http://biocycle.atmos.colostate.edu/Papers_files/Zupanski.MLEF.pdf