1. A total approach to water quality management in urbanised catchments;Appan,1977
2. A computer solution for determination of unit pollution loads;Appan;Prog. Wat. Tech.,1979
3. Computer simulation for isolation of sources of nutrient inputs into reservoirs;Appan,1981
4. Water pollution survey and the impact of farming activities on reservoir inputs;Appan,1982
5. Environmental impact of antipollution measures on an unprotected catchment;Appan,1985