The 2019's article by Shubiao Wu, Jan Vymazal and Hans Brix entitled Critical Review: Biogeochemical Networking of Iron in Constructed Wetlands for Wastewater Treatment in the journal Environmental Science & Technology received special attention and was included among the European Top Cited Articles Published 2018 - 2020 in the Water Treatment category. This is the result of cooperation between experts from the Danish Aarhus University and the Department of Applied Ecology, FES CZU Prague. Congratulations!