Biblio

L. J. M., Wegelin, M., y G. C., G., «La filtracion gruesa en el tratamiento de agua de fuentes superficiales», vol. no. 4/98. SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. vi, 170 p. : fig., photogr., tab., 1998.

M. Wegelin, Zimmerman, T., y Burgthaler, B., «Rehabilitation of slow sand filters and new treatment plant designs in rural Cameroon», in Advances in slow sand and alternative biological filtration, 1996, pp. P. 359-369 : 7 fig., 5 tab.

M. Wegelin, Surface water treatment by roughing filters : a design, construction and operation manual, vol. no. 2/96. St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management), 1996, p. 163 p. : fig., tab.

M. Pardon, Wegelin, M., y G. C., G., «Prefilters, handpumps and small tanks : key issues for viable rural water supplies?», Water supply : the review journal of the International Water Supply Association, pp. p. SS18.1-SS18.8: fig., tab., 1989.