Working Paper
Quercus suber network: Report of the 1st and 2nd meetings - 1-3 December 1994 and 26-27 February 1995, Rome, Italy
Frison, Emile A.
European Forest Genetic Resources Programme; Frison, E.; Varela, M.C.; Turok, J. (comps.) (1995) Quercus suber network. n. 41 p. ISBN: 978-92-9043-265-4, ISBN: 92-9043-265-9