Klaus Froehlich

Isotopes in the Water Cycle: Past, present and future of a developing science

Pradeep K. Aggarwal, P. Aggarwal, J. Gat, 2005 .

Environmental isotopes in the hydrological cycle: principles and applications

Harro A. J. Meijer, Kazimierz Rozanski, J. Gat, 2001 .