For Dipsacus
Ferguson (1965)
Ferguson, I.K., and G.K. Brizicky. 1965. Nomenclatural notes on Dipsacus fullonum and Dipsacus sativus. J. Arnold Arb. 46: 362-365.
Mayer, V. 2016. Dipsacaceae (inclusive Triplostegia). In Kadereit, J.W., and V. Bittrich. 2016. The families and genera of flowering plants. XIV. Flowering plants – Eudicots – Aquifoliales, Boraginales, Bruniales, Dipsacales, Escalloniales, Garryales, Paracryphiales, Solanales (except Convolvulaceae), Icacinaceae, Metteniusaceae, Vahliaceae. Springer, Berlin. 412 pp.
Stace, C. 2010. New flora of the British Isles, third edition. Cambridge Univ. Press, Cambridge. 1232 pp.