1. Anderson, B. 1986. Effects of selection in herbage legumes. In Olsson, G. (ed.), Svolof 1886 – 1986. Research and Results in Plant Breeding. Svalof A B, Svalov, Sweden.
2. Anderson, M.K., N.L. Taylor and R.R. Hill. 1974. Combining ability in Io single crosses of red clover. Crop Sci. 14:417–419.
3. Barnett, O.W. and S. Diachun. 1985. Virus diseases of clovers. In N.L. Taylor (ed.), Clover Science and Technology. ASA-CSSA-SSSA. Mono. 25:235–268.
4. Bingefors, S. and E. Akerberg. 1961. Swedish land races of red clover. Euphytica. 10:147–151.
5. Choo, T.M. 1984. Association between growth habit and persistence in red clover, Trifolium pratense. Euphytica. 33:177–185.