Randler, C., Tryjanowski, P., Jokimäki, J., Kaisanlahti-Jokimäki, M., & Staller, N. (2020). SARS-CoV2 (COVID-19) Pandemic Lockdown Influences Nature-Based Recreational Activity: The Case of Birders. Int J Environ Res Public Health.

Randler, Christoph, Piotr Tryjanowski, Jukka Jokimäki, Marja-Liisa Kaisanlahti-Jokimäki, and Naomi Staller. "SARS-CoV2 (COVID-19) Pandemic Lockdown Influences Nature-Based Recreational Activity: The Case of Birders." Int J Environ Res Public Health 2020.

Randler, Christoph, et al. "SARS-CoV2 (COVID-19) Pandemic Lockdown Influences Nature-Based Recreational Activity: The Case of Birders." Int J Environ Res Public Health 2020.