Items where Author is "Helliwell, R."

Yes

Prechtel, A. and Alewell, C. and Armbruster, M. and Bittersohl, J. and Cullen, J. M. and Evans, C. D. and Helliwell, R. and Kopacek, J. and Marchetto, A. and Matzner, E. and Meesenburg, H. and Moldan, F. and Moritz, K. and Vesely, J. and Wright, R. F.. (2001) Response of sulphur dynamics in European catchments to decreasing sulphate deposition. Hydrology and earth system sciences, Vol. 5, H. 3. pp. 311-325.