BELČÁKOVÁ, Ingrid et al. A heightened perspective : regional assessment of the policy, legislative and institutional frameworks implementing the Carpathian Convention [elektronický zdroj]. 1. vyd. Szentendre : Regional Environmental Center for Central and Eastern Europe, 2007. 144 p. Dostupné na internete: <http://documents.rec.org/publications/Heightened_Perspective_Dec2007_EN.pdf> ISBN 978-963-9638-33-4.