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Proceedings of an international conference convened by the Norwegian National Committee for Hydrology in cooperation with the Steering Committee of the FREND project (Flow Regimes from Experimental and Network Data), the International Hydrological Programme of Unesco, and the International Association of Hydrological Sciences (IAHS). The conference was held at Bolkesjø, Norway, 1-6 April 1989.
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FRIENDS in hydrology : Flow Regimes from International Experimental and Network Data Sets. ISBN 0947571272. Published by International Association of Hydrological Sciences in 1989. Publication and catalogue information, links to buy online and reader comments.