Reference

O. Mastenbroek, H.C. Prentice, J. Heringa, P. Hogeweg (1984): Corresponding Patterns of Geographic Variation Among Populations of Silene latifolia ( = S. alba = S. pratensis) (Caryophyllaceae) – Österreichische Botanische Zeitschrift = Plant Systematics and Evolution – 145: 227 - 242.