Wegelin, M. y Meierhofer, R., Desinfección solar del agua : guía de aplicación, vol. no. 07/03. Duebendorf, Switzerland: Water and Sanitation in Developing Countries (SANDEC), 2003, p. 90 p. : fig., photogr., tabs.

Zimmo, O., Nitrogen transformations and removal mechanisms in algal and duckweed waste stabilisation ponds. Lisse, The Netherlands: Swets and Zeitlinger, 2003, p. 131 p. : fig., tab.

Wegelin, M. y Meierhofer, R., Solar water disinfection: a guide for the application of SODIS, vol. no. 06/02. Duebendorf, Switzerland: Water and Sanitation in Developing Countries (SANDEC), 2002, p. iii, 58 p. + 22 p.annexes: fig., photogr., tabs.

Reed, R.H., «Solar inactivation of faecal bacteria in water : the critical role of oxygen», Society for Applied Bacteriology : Letters in applied microbiology, pp. p. 1-000 : 3 fig., 1997.

Erikson, E., «Hydrochemical balances of freshwater systems : proceedings of the Uppsala symposium, September 1984, conveved by the Committee for Hydrology of the Swedish National Science Research Council in cooperation with UNESCO and IAHS», vol. no. 150. IAHS Press, Institute of Hydrology, Wallingford, UK, 1984.

IWSA -London, GB, International Water Association, «13th International water distribution congress and exhibition = 13e Congres et exposition internationaux des distributions d'eau». IWSA (International Water Services Association), London, UK, p. 1 portfolio, 1980.

Schmidt, K., «Intermittent operation of slow sand filters for artificial recharge of groundwater», presented at the 1975-01-01, Voorburg, The Netherlands, 1975, p. 8, ((16)) p.: fig.