Ivanova, O.

Ivanova, O., 1993. National integrated programme on environment and health in the Slovak Republic : the effects of environmental factors on the health status of the population in the Eastern Slovakia lowland, (Environment and health no. 11) Bilthoven, The Netherlands: World Health Organization European Centre for Environment and Health. Available at: https://www.ircwash.org/sites/default/files/R821-12605.pdf.