1. Becker, P. E.: Humangenetik, Bd. V/2. Stuttgart: Thieme 1967.
2. B�hler, U. K., B�hler, E. M., Sartorius, J., Stalder, G. R.: Multiple Mi�bildungen bei partieller Trisomie C (12) als Manifestation einer erblichen E/C (18/12) Translokation Helv. paediat. Acta22 (2) 41?53 (1967).
3. Chicago Conference: Standardisation in Human Cytogenetics. Birth defects. Original article series 1966, II, 2. New York: The National Foundation.
4. Claveau, J. C.: Trisomy 18; A case of mosaicism. Laval med.38, 815?819 (1967).
5. Cooper, H. L., Hirschhorn, K.: Enlarged satellites as a familial chromosome marker. Amer. J. hum. Genet.14, 107 (1962).