Der Perlentaucher unter den Buchläden Eichendorff21

**Edita Baltrenaite** , Doctor of Sciences in the Scientific Field of Environmental Engineering and Landscape Management, Associated Professor, acting as a professor in Vilnius Gediminas Technical University. She serves as Executive Editor of the Journal of Environmental Engineering and Landscape Management, an international scientific journal. **Pranas Baltrenas** , Professor-emeritus, Dr. Habil, Vilnius Gediminas Technical University, the originator of the Department of Environmental Protection and the Institute of Environmental Protection as well as the pioneer of environmental engineering in Lithuania. **Arvydas Lietuvninkas** , Doctor of physical sciences (volcanology and petrology), professor; a honorary research worker in the Russian system of higher professional education, awarded by several medals and prizes for research and pedagogical achievements.