Grubliauskas, Raimondas. “In Memoriam: Prof. Pranas Baltrėnas (1940–2021)”. Journal of Environmental Engineering and Landscape Management 29, no. 2 (May 13, 2021): 72. Accessed December 23, 2024. https://gc.vgtu.lt/index.php/JEELM/article/view/14771.