M. D.  Lledó, Davis, A. P., Crespo, M. B., Chase, M. W., and Fay, M. F., ?Phylogenetic analysis of Leucojum and Galanthus (Amaryllidaceae) based on plastid matK and nuclear ribosomal spacer (ITS) DNA sequences and morphology?, Plant Systematics and Evolution, vol. 246, pp. 223-243, 2004.

A. P.  Davis, The genus Galanthus. Portland, Oregon: Timber Press, 1999.

M.  Bishop, Davis, A. P., and Grimshaw, J., Snowdrops: A Monograph of Cultivated Galanthus. Cheltenham: Griffin Press, 2006.

A. P.  Davis, McGough, H. N., Mathew, B., and Grey-Wilson, C., CITES bulb checklist. Kew: Royal Botanic Gardens, 1999.