Template:Fries, 1845-1849
- Fries, E.M. 1845–1849. Summa Vegetabilium Scandinaviae, seu Enumeratio, Systematica et Critica, Plantatum tum Cotyledonearum, quum Nemearum inter Mare Occidentale et Album, inter Eidoram et Nordkap, Hactenus Lectarum una cum Singulae Distributione Geographica., Secio prior: 1–258 (1845) [with slightly different title in 1846], Section posterior: 259–572 (1849). Biblioteca Digital (1845), BHL (1846), BHL (1849)