HENNING, Katrin, VON OHEIMB, Goddert and SABINE, Tischew. What restricts generative rejuvenation of Calluna vulgaris in continental, dry heathland ecosystems: seed production, germination ability or safe site conditions?. Ecological Questions. Online. 10 July 2015. Vol. 21, pp. 25-28. [Accessed 5 July 2025]. DOI 10.12775/EQ.2015.004.