Widdup, K., Hussain, S., Williams, W., Lowther, W., Pryor, H. and Sutherland, B. (2003) “The development and plant characteristics of interspecific hybrids between white and caucasian clover”, NZGA: Research and Practice Series, 11, pp. 143–148. doi: 10.33584/rps.11.2003.3004.