1. Arakaki, D. T., Sparkes, R. S.: Microtechnique for culturing leucocytes from whole blood. Cytogenetics 2, 57 (1963)
2. Cummins, H., Midlo, C.: Finger prints, palms and soles. New York: Dover Publications, Inc. 1943
3. Evans, V. J., Earle, W. R.: The use of perforated cellophan for the growth of cells in tissue culture. J. nat. Cancer Inst. 8, 103–119 (1947)
4. Kunze, J., Stephan, E., Tolksdorf, M.: Ring-Chromosom 18. Ein 18p-/18q-Deletions-Syndrom. Humangenetik 15, 289–318 (1972)
5. Lurie, I. W., Lazjuk, G. I.: Partial monosomies 18. Review of cytogenetical and phenotypical variants. Humangenetik 15, 203–222 (1972)