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.
ilec.or.jp
wldb.ilec.or.jp
"Poyang Lake". International Lake Environment Committee Foundation. Archived from the original on December 13, 2013. Retrieved February 13, 2014.
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.
"Poyang Lake". International Lake Environment Committee Foundation. Archived from the original on December 13, 2013. Retrieved February 13, 2014.