K. M. Bowes, Zheljazkov, V. D., Caldwell, C. D., Pincock, J. A., and Roberts, J. C.,
“Influence of seeding date and harvest stage on yields and essential oil composition of three cultivars of dill ( Anethum graveolens L.) grown in Nova Scotia”,
Canadian Journal of Plant Science, vol. 84, no. 4, pp. 1155 - 1160, 2004.