P.  Bruschi, Vendramin, G., Bussotti, F., and Grossoni, P., ?Morphological and molecular differentiation between Quercus petraea (Matt.) Liebl. and Quercus pubescens Willd. (Fagaceae) in Northern and Central Italy?, Annals of Botany, vol. 85, pp. 325 - 333, 2000.

P.  Bruschi, Vendramin, G. G., Bussotti, F., and Grossoni, P., ?Morphological and Molecular Differentiation between Quercus petraea(Matt.) Liebl. and Quercus pubescens Willd. (Fagaceae) in Northern and Central Italy?, Annals of Botany, vol. 85, pp. 325-333, 2000.