COOMBES, A. J., and F. M. VÁZQUEZ. “Correct Citation and Lectotypification of <em>Quercus ×kabylica</em> and <em>Q. ×numidica</Em> (Fagaceae)”. Phytotaxa, vol. 478, no. 2, Jan. 2021, pp. 275–280, doi:10.11646/phytotaxa.478.2.9.