Straupe, I., and A. Adamovičs. “Biotope Protection Problems in Tervete Nature Park”. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 26, 2006): 259–264. Accessed April 15, 2025. https://journals23.rta.lv/index.php/ETR/article/view/2015.