1. L. F. Belovodskii, V. K. Gaevoi, and V. I. Grishmanovskii, Tritium [in Russian], Moscow (1985).
2. P. Engesgaard, K. H. Jensen, J. Molson, E. O. Frind, and H. Olsen, Water Resour. Res., 32, No. 11, 3253–3265 (1996).
3. L. W. Gelhar, C. Welty, and K. R. Rehfeldt, Water Resour. Res., 28, No. 7, 1952–1974 (1992).
4. G. N. Genzel’, N. F. Karachevtsev, P. K. Konosavskii, et al., Solution of Problems of Protection of Subterranean Water Using Numerical Models [in Russian], Moscow (1992).
5. V. N. Nikolaevskii, Prikl. Mat. Mekh., 23, No. 6, 1042–1050 (1959).