1. Geifman, Y. (1981) The Monitor Ring System: Ntrate Contribution from the Peat Land Soil. Interim Report, Mekorot Water Supply Company Ltd., Drainage Basin Unit, Jordan District; 16 p. (In Hebrew)
2. Geifman, Y., Shaw, M., Dexter, H. and Sarusi, F. (1987) The Kinneret Watershed Jordan and Headwaters Loads Investigation: 8 Supplemental Chapters. Mekorot Water Co. Ltd., Jordan District, Watershed Unit, Nazareth, 150 p.
3. The Lake Kinneret Drainage Basin
4. Seasonal and Spatial Distribution of N & P Substances in the Hula Valley (Israel) Subterranean
5. Agriculture, Recreation, Water Quality and Nature Protection in the Hula Valley, Israel