Lucas, A. I. de, S. C. González Martínez, E. Hidalgo, F. Bravo, and M. Heuertz. “Admixture, One-Source Colonization or Long-Term Persistence of Maritime Pine in the Castilian Plateau? [Spain]. Insights from Nuclear Microsatellite Markers”. Forest Systems, Vol. 18, no. 1, Apr. 2009, pp. 3-12, doi:10.5424/fs/2009181-01045.