Nagy, L.; Ducci, F. (2004). "Acer campestre - Field maple"(PDF). EUFORGEN Technical Guidelines for Genetic Conservation and Use: 6 p. Archived from the original(PDF) on 2016-10-19.
Nagy, L.; Ducci, F. (2004). "Acer campestre - Field maple"(PDF). EUFORGEN Technical Guidelines for Genetic Conservation and Use: 6 p. Archived from the original(PDF) on 2016-10-19.