Hirsch, A. I., Trumbore, S. E., Goulden, M. L. (2004/09) The Surface CO2 Gradient And Pore-Space Storage Flux In A High-Porosity Litter Layer,
Tellus Series B-Chemical and Physical Meteorology, 56(4), 312-321. https://doi.org/10.1111/j.1600-0889.2004.00113.x