@techreport{MischkeRiedmuellerHoehnetal., author = {Mischke, Ute and Riedm{\"u}ller, Ursula and Hoehn, Eberhard and Nixdorf, Brigitte}, title = {Handbuch Phyto-See-Index - Verfahrensbeschreibung f{\"u}r die Bewertung von Seen mittels Phytoplankton : Im Rahmen des L{\"a}nderfinanzierungsprogramms "Wasser, Boden und Abfall", Stand 15. Dezember 2017}, language = {de} } @misc{NixdorfKnopfRiedmuelleretal., author = {Nixdorf, Brigitte and Knopf, Klaus and Riedm{\"u}ller, Ursula and Mischke, Ute}, title = {From Trophic Classification to Ecological Assessment of Lakes - European Water Framework Directive and German lakes}, series = {International Conference „Lakes \& Reservoirs: Hot Spot and Topics in Limnology"17-20 September 2019 - Mikorzyn, Poland}, journal = {International Conference „Lakes \& Reservoirs: Hot Spot and Topics in Limnology"17-20 September 2019 - Mikorzyn, Poland}, address = {Mikorzyn}, pages = {45}, language = {en} }