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Martínez-Zurimendi, P., Álvarez, J.M., Pando, V., Domínguez, M., Gordo, J., Finat, L. and Sierra-de-Grado, R. 2009. Effects of vibration on stone pine trees (Pinus pinea L.) on the vigor of the trees: crown density, growth shoots and parasites of weak trees. Forest Systems. 18, 1 (Apr. 2009), 50-63. DOI:https://doi.org/10.5424/fs/2009181-01050.