Karen van Rheede van Oudtshoorn & Margaretha W. Van Rooyen (1999). "Geocarpy". Dispersal Biology of Desert Plants. Springer. pp. 117–118. ISBN978-3-540-64886-4.
Suzanne I. Warwick (2010). "Brassicaceae in agriculture". In Renate Schmidt; Ian Bancroft (eds.). Genetics and Genomics of the Brassicaceae. Plant Genetics and Genomics. Vol. 9. Springer. pp. 33–66. ISBN9781441971180.