Frattaroli A. R., Di Martino L., Di Cecco V., Catoni R., Varone L., Di Santo M. y Gratani L. (2013). Seed germination capability of four endemic species in the Central Apennines in Italy: relationship between seed size and germination capability. Lazaroa, 34, 43-53. https://doi.org/10.5209/rev_LAZA.2013.v34.n1.42253