POLI MARCHESE, E.; TURRISI, R. Spontaneously spreading introduced species in the Mt. Etna Nuova Gussonea botanic garden during the thirty years of activity (1979-2009). Bullettin of the Gioenia Academy of Natural Sciences of Catania, v. 47, n. 377/SFE, p. SFE55-SFE62, 31 dez. 2014.