Navarro-Cerrillo, R.M., Beira, J., Suarez, J., Xenakis, G., Sánchez-Salguero, R. and Hernández-Clemente, R. 2016. Growth decline assessment in Pinus sylvestris L. and Pinus nigra Arnold. forest by using 3-PG model. Forest Systems. 25, 3 (Dec. 2016), e068. DOI:https://doi.org/10.5424/fs/2016253-08610.