The project on constructed wetlands for waste water treatment originated from the consulting company K-Konsult (where I worked 1984 - 1988). I brought this project along when I started my doctoral studies at the Royal Institute of technology (KTH) in 1988. The studies on constructed wetlands formed the basis of my Technical Licentiate degree (in between an MSc and a PhD), presented in 1991.

Journal articles

• Gumbricht, T., Ecological Engineering 1993. Nutrient removal capacity in submersed macrophyte pond systems in a temperature climate.
• Gumbricht, T, Ecological Engineering 1993. Nutrient removal processes in freshwater submersed macrophyte systems.
• Gumbricht, T., Ecological Engineering 1992. Tertiary wastewater treatment using the root-zone method in temperate climates.
• Gumbricht, T. et al., Vatten 1991. Reduction of nutrients by water plants. Final report, the Snogeroed project

Book chapters

• Gumbricht, T., Ecological Engineering for Wastewater Treatment (2nd ed.) 1997. Submersed macrophytes for recovery of eutrophied waters - nutrient spiraling and removal efficiency.

Licentiate thesis

• Gumbricht, T., Royal Institute of Technology (KTH), Stockholm (TRITA-KUT /91:1064. Licentiate thesis.) 1991. Nutrient reduction using macrophyte systems in temperate climate.