1. Arrighi, F. E., Hsu, T. C.: Localization of heterochromatin in human chromosomes. Cytogenetics 10, 81 (1971)
2. Boue, J., Boue, A.: Chromosomal anomalies in spontaneous abortions. In: Les accidents chromosomiques de la reproduction. ed. Boue, A. and Thibault, C. Inserm p. 29, 000 (1973)
3. Carr, D. H.: Chromosome abnormalities and spontaneous abortions. In: Human Population Cytogenetics. The Williams and Wilkins Company, p. 104, ed. P. A. Jacobs, W. H. Price and P. Law 1970
4. Darlington, C. D.: Misdivision and the genetics of the centromere. J. Genet. 37, 341 (1939)
5. De la Chapelle, Albert and Kristina Stenstrand: Dicentric human X chromosomes. Hereditas 76, 259 (1974)