1. ARH (2001) ARH-Centro, Plano da Bacia do Rio Lis 2001. http://www.arhcentro.pt/website/ARH_do_Centro/Dep._de_Planeamento_Informa%C3%A7%C3%A3o_e_Comunica%C3%A7%C3%A3o/Planeamento_e_Informa%C3%A7%C3%A3o/Plan._Bacia_Hidrogr%C3%A1fica/PGH_-_Rio_Lis.aspx . Accessed 2 May 2011
2. Barth F (1998) Die EU-Wasserrahmenrichtlinie und ihre Auswirkungen auf die Wasserwirtschafl in Baden-Wthttemberg. Wasser Boden 88:446–449
3. Brown LC, Barnwell TO (1987) The enhanced stream water quality models QUAL2E and QUAL2E UNCAS. EPA
4. Chapra SC (1997) Surface water quality modeling. McGraw-Hill, New York
5. Chow VT, Maidment DR, Mays LW (1988) Applied hydrology. McGraw-Hill, New York