Duwe, Kurt (2003-01-03). "D24: Realistic Residence Times Studies"(PDF). Integrated Water Resource Management for Important Deep European Lakes and their Catchment Areas. EUROLAKES. Archived from the original(PDF) on January 26, 2007. Retrieved 2007-12-11.
web.archive.org
Duwe, Kurt (2003-01-03). "D24: Realistic Residence Times Studies"(PDF). Integrated Water Resource Management for Important Deep European Lakes and their Catchment Areas. EUROLAKES. Archived from the original(PDF) on January 26, 2007. Retrieved 2007-12-11.