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H. H. Hilger, Frederico Selvi, A. Papini, Massimo Bigazzi: Molecular Systematics of Boraginaceae Tribe Boragineae Based on ITS1 and trnL Sequences, with Special Reference to Anchusa s. l. In: Annals of Botany. Band94, Nr.2, 2004, S.201–212, doi:10.1093/aob/mch132 (englisch, oxfordjournals.org [PDF; 176kB]).
oxfordjournals.org
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H. H. Hilger, Frederico Selvi, A. Papini, Massimo Bigazzi: Molecular Systematics of Boraginaceae Tribe Boragineae Based on ITS1 and trnL Sequences, with Special Reference to Anchusa s. l. In: Annals of Botany. Band94, Nr.2, 2004, S.201–212, doi:10.1093/aob/mch132 (englisch, oxfordjournals.org [PDF; 176kB]).