Feurdean, A., Gałka, M., Tantau, I., Geanta, A., Hutchinson, S., & Hickler, T. (2016). Tree and timberline shifts in the northern Romanian Carpathians during the Holocene and the responses to environmental changes. Quaternary Science Reviews, 134, 100-113. https://doi.org/10.1016/j.quascirev.2015.12.020