1. World Wide Fund for Nature (WWF), "Illegal Logging and Forest Crime Is a Growing Problem - Ranking 3rd in Transnational Crime in 2017," World Wide Fund for Nature (WWF), without year. [Online]. Available: https://www.wwf.eu/what_we_do/forests/our_work_eu_forests/. [Accessed 2nd June 2023].
2. EuroNatur Stiftung, "Illegal logging of Romania’s natural forests increases despite court threat," 24 February 2022. [Online]. Available: https://www.euronatur.org/en/what-we-do/news/illegal-logging-of-romanias-natural-forests-increases-despite-court-threat. [Accessed 10th June 2023].
3. Der Spiegel: Romania's Ancient Forests under Siege by Illegal Loggers Backed by Austrian Companies;Dumitrescu,2023
4. Fighting Illegal Logging in Europe. An Overview of Trends, Players, and Action;Colantoni,2022
5. JRC Science for Policy Report: Mapping and Assessment of Primary and Old-Growth Forests in Europe;Barredo,2021