1. Anderson, E. and Brown, W.L. 1952. Origin of corn belt maize and its genetic significance. In Heterosis (J.W. Gowen, ed.). pp. 124–148.
2. Specific end-to-end attachment of chromosomes in Ornithogalum virens;Ashley;J. Cell Sci.,1979
3. Molecular characterisation of telomeric heterochromatin in Secale species;Bedbrook;Cell,1980
4. Mammalian chromosomes similar in length are also similar in shape;Bengtsson;Hereditas,1975
5. DNA amount, latitude and crop plant distribution;Bennett,1976