Riha, B.

Rosensweig, F. et al., 1994. Recommended option for decentralizing the water and wastewater sector in Slovakia, (Wash field report no. 444) Arlington, VA, USA: Water and Sanitation for Health Project (WASH). Available at: https://es.ircwash.org/sites/default/files/821-CSSL94-12194.pdf.