P. Nkedi-Kizza, J. W. Biggar, M. Th. van Genuchten, P. J. Wierenga, H. M. Selim, J. M. Davidson, D. R. Nielsen,
Modeling tritium and chloride 36 transport through an aggregated oxisol Water Resources Research. ,vol. 19, pp. 691- 700 ,(1983) ,
10.1029/WR019I003P00691