Bacchetta, G. et al. 2008. CEPHALARIA BIGAZZII (DIPSACACEAE), A NEW RELIC SPECIES OF THE CEPHALARIA SQUAMIFLORA GROUP FROM SARDINIA. Edinburgh Journal of Botany. 65, 1 (Mar. 2008), 145–155. DOI:https://doi.org/10.1017/S0960428608004964.