Nürk, Nicolai M. ; Uribe-Convers, Simon ; Gehrke, Berit ; Tank, David C. ; Blattner, Frank R. (2015) Oligocene niche shift, Miocene diversification – cold tolerance and accelerated speciation rates in the St. John’s Worts (Hypericum, Hypericaceae). BMC Evolutionary Biology, 15 (80). pp. 1-13. ISSN 1471-2148