M.  Bendiksby, Brysting, A. K., Thorbek, L., Gussarova, G., and Ryding, O., ?Molecular phylogeny and taxonomy of the genus Lamium L. (Lamiaceae): Disentangling origins of presumed allotetraploids?, Taxon, vol. 60, pp. 986?1000, 2011.

M.  Bendiksby, Thorbek, L., Scheen, A. - C., Lindqvist, C., and Ryding, O., ?An updated phylogeny and classification of Lamiaceae subfamily Lamioideae?, Taxon, vol. 60, pp. 471?484, 2011.