Paiders, Juris. “Status of Environmental Protection As a Source of Finance for Regional Economic Development: Measurement of Environmental and Regional Policy With the Fisher Function”. Journal of Environmental Engineering and Landscape Management 16, no. 1 (March 31, 2008): 45-55. Accessed November 25, 2024. https://jcem.vgtu.lt/index.php/JEELM/article/view/6614.