Integral quantification of contaminant mass flow rates in a contaminated aquifer: conditioning of the numerical inversion of concentration-time series.
Herold M, Ptak T, Bayer-Raich M, Wendel T, Grathwohl P. Integral quantification of contaminant mass flow rates in a contaminated aquifer: conditioning of the numerical inversion of concentration-time series. J Contam Hydrol. 2009 Apr 15; 106(1-2):29-38.