1. Towards a Unified Ecology;Allen,1992
2. Transcending processes and the levels of organisation concept;Barrett;Bioscience,1997
3. Hydraulic simulation in instream flow studies: theory and techniques;Bovee,1978
4. Relationships between demographic structure of Breonadia Salicina (Delile) sub-populations and geomorphic features of the Sabie River, Kruger National Park;de Fontaine,1999
5. A hierarchical framework for stream classification viewing streams in a watershed context;Frissel;Environmental Management,1986