Cires Rodriguez E, Baltisberger M, Cuesta C, Vargas P, Prieto J. Allopolyploid origin of the Balkan endemic Ranunculus wettsteinii (Ranunculaceae) inferred from nuclear and plastid DNA sequences. Organisms Diversity and Evolution. 2014;14(1):1-10. doi:10.1007/s13127-013-0150-6