1. Nowak, D. J., & Crane, D. E. (2002). Carbon storage and sequestration by urban trees in the USA. Environmental pollution, 116(3), 381-389.
2. Pretzsch, H., Biber, P., Uhl, E., Dahlhausen, J., Schütze, G., Perkins, D., ... & Chavanne, A. (2017). Climate change accelerates growth of urban trees in metropolises worldwide. Scientific Reports, 7(1), 1-10.