1. Asseyeva, T. (1926). “A Contribution, to the Genetics of the Potato.”Bull. of the Korenevo Section of the Moscow Agr. Exp. Sta. No. 16. (Russian.)
2. - (1926). “Systematics of the Potato and Identification of its Varieties.”Ibid. No. 14. (Russian.)
3. Bateson, W. (1926). “Segregation.”Journ. of Genetics, xvi, No. 2.
4. Bukassov, S. M. (1925). “The Potato in U.S.S.R. (Classification of potato varieties and the selection of the potato).”Bull. of Appl. Bot. and Plant Breeding, xv, No. 2.
5. Chittenden, R. (1927). “Vegetative segregation.”Bibliographia genetica, iii.