1. UMR G-eau, IRD; Montpellier France
2. University of Avignon; Avignon France
3. Monash University; Clayton Victoria Australia
4. University of Glasgow; Glasgow UK
5. Hanoi University of Mining and Geology; Hanoi Vietnam
6. Institute for Nuclear Sciences and Technologies; Hanoi Vietnam
7. Isotope Hydrology Section, International Atomic Energy Agency; Vienna Austria