References
   -  J. Vymazal, In: P.F. Cooper and B.C. Findlater, eds., Constructed
    Wetlands in Water Pollution Control, Pergamon Press, Oxford,
    1990, pp. 347–358. 
-  J. Vymazal, In: J. Vymazal, H. Brix, P.F. Cooper, M.B. Green and
    R. Haberl, eds., Constructed Wetlands for Wastewater Treatment
    in Europe, Backhuys Publishers, Leiden, The Netherlands,
    1998, pp. 95–121. 
-  J. Vymazal, In: G.A. Moshiri, ed., Constructed Wetlands for
    Water Quality Improvement, CRC Press,Lewis Publishers, Boca
    Raton, Florida, 1993, pp.255–260. 
-  J. Vymazal, Wat. Sci. Tech., 32 (1995) 357–364. 
-  J. Vymazal, Ecol. Eng.. 18 (2002) 633–646. 
-  J. Vymazal, In: A.R. Burk, ed., Focus on Ecology Research, Nova
    Science Publishers, Inc., New York, 2006, pp. 175–196. 
-  J. Vymazal and L. Kröpfelová, Ecol. Eng., 25 (2005) 606–621. 
-  P.F. Cooper, G.D. Job, M.B. Green and R.B.E. Shutes, Reed Beds
    and Constructed Wetlands for Wastewater Treatment, WRC
    Publications, Medmenham, Marlow, UK, 1996. 
-  R.H. Kadlec and R.L. Knight, Treatment Wetlands, CRC Press,
    Boca Raton, Florida, 1996. 
-  J. Vymazal, H. Brix, P.F. Cooper, M.B. Green and R. Haberl, eds.,
    Constructed Wetlands for Wastewater Treatment in Europe,
    Backhuys Publishers, Leiden, The Netherlands, 1998. 
-  A. Drizo, C.A. Frost, J. Grace and K.A. Smith, Physico-chemical
    screening of phosphate removing substrates for use in constructed
    wetlands, Water Res. 33 (1999) 3595–3602. 
-  P.D. Jenssen and T. Krogstad, In: Ü. Mander and P. Jenssen, eds.,
    Constructed Wetlands for Wastewater Treatment in Cold Climates,
    WIT Press, Southampton, UK, 2003, pp. 260–271. 
-  E.A. Korkusuz, M. Beglioglu and G.N. Demirer, Ecol. Eng., 24
    (2005) 187–200. 
-  R.A. Mann and H.J. Bavor, Wat. Sci. Tech., 27 (1993) 107–113. 
-  D. Xu, J. Xu, J. Wu and A. Muhammad, Chemosphere, 63 (2006)
    344–352. 
-  C. Vohla, E. Põldvere, A. Noorvee, V. Kuusemets and Ü. Mander,
    J. Environ. Sci. Health, A 40 (2005) 1251–1264. 
-  J. Vymazal, Removal of nutrients in various types of constructed
    wetlands, Sci. Tot. Environ., 380 (2007) 48–65.