1. Boskovic, M. & L. E., Browder, 1976. A comparison of pathogenicity of Puccinia recondita tritici in Europe, the United States and Canada. Plant Disease Rpt. 60: 278–280.
2. Brinkman, M. A. & K. J., Frey, 1977. Yield component analysis of oat isolines that produce different grain yields. Crop. Sci. 17: 165–168.
3. Clifford, B. C., 1980/81. Interactions between U.K. isolates of Puccinia recondita tritici and Thatcher wheat lines with single resistance genes. Cereal Rust Bull. 8(2): 10–16.
4. Donchev, N., 1979. The leaf rust pollen of wheat in bulgaria in 1977–1978. Cereal Rusts Bull. 7(1): 16–20.
5. Dyck, P. L., 1977. Genetics of leaf rust reaction in three introductions of common wheat. Can. J. Genet. Cytol. 19: 711–716.