Ascoli, D., Maringer, J., Hacket-Pain, A., Conedera, M., Drobyshev, I., Motta, R., … Vacchiano, G. (2017). Two centuries of masting data for European beech and Norway spruce across the European continent. Ecology, 98(5), 1473 (1 p.). https://doi.org/10.1002/ecy.1785