Seven Iberian Ulmus minor clones resistant to DED registered for their use as forest reproductive material - Juan Antonio Martín; Alejandro Solla; Martin Venturas; Jorge Domínguez; Eva Miranda; Pablo Fuentes-Utrilla; Margarita Burón; Carmen Collada; Salustiano Iglesias; Luis Gil (Abstracts. Third International Elm Conference. The Elms After 100 Years Of Dutch Elm Disease., 2013)