L.  Toumi and Lumaret, R., ?Allozyme variation in cork oak (Quercus suber L.): the role of phylogeography and genetic introgression by other Mediterranean oak species and human activities?, Theoretical and Applied Genetics, vol. 97, pp. 647-656, 1998.

R.  Lumaret, Mir, C., Michaud, H., and Raynal, V., ?Phylogeographical variation of chloroplast DNA in holm oak (Quercus ilex L.)?, Molecular Ecology, vol. 11, pp. 2327-2336, 2002.