Martin, R.J., Savage, G.P., Deo, B., Halloy, S.R.P. and Fletcher, P.J. 2005. Development of new oca lines in New Zealand. Acta Hort. (ISHS) 670:87-92. http://www.actahort.org/books/670/670_9.htm
Pissard, A., Ghislain, M., & Bertin, P. (2006). Genetic diversity of the Andean tuber-bearing species, oca (Oxalis tuberosa Mol.), investigated by inter-simple sequence repeats. Genome 49(1), 8–16. DOI:10.1139/g05-084