Anderson, E., and D. de Winton, 1931 The genetic analysis of an unusual relationship between self-sterility and self-fertility in Nicotiana. Ann. Mo. bot. Gdn. 18: 97-116.
East, E. M., 1940 The distribution of self-sterility in the flowering plants. Proc. Amer. Phil. Soc. 82: 449-518.
Hogenboom, N. G., 1972 Breaking breeding barriers in Lycopersicon. 4. Breakdown of unilateral incompatibility between L. peruvianum (L.) Mill. and L. esculentum Mill. Euphytica 21: 397-404.
Hogenboom, N. G., 1975 Incompatibility and incongruity: two different mechanisms for the nonfunctioning of intimate partner relationships. Proc. Roy. Soc. Lond., B 188: 361-375.
Lewis, D., and L. K. Crowe, 1958 Unilateral interspecific incompatibility in flowering plants. Heredity 12: 233-256.