Biblio

A. Mathys and Komives, K., “Improving peri-urban water supply and sanitation services : early lessons from the El Alto Pilot Project”, vol. no. 4. Water and Sanitation Program - Andean Region, La Paz, Bolivia, p. 6 p. : 3 photogr., 2 tab., 1999.

A. Savina and Mathys, A., “L'alimentation en eau en milieu urbain dans les quartiers defavorises : une question de partage?”. World Bank Regional Water and Sanitation Group for West and Central Africa, Abidjan, Ivory Coast, p. 22 p. : 6 fig., photogr., 5 tab., 1994.