1. Bühler, E. M., Tsuchimoto, T., Bühler, V. K., Stalder, G. K.: Eine seltene Strukturanomalie des Y-Chromosoms: Ring Y. Arch. Genet. (Zur.) 47, 52?59 (1974)
2. Caspersson, T., Zech, L., Johannson, C., Modest, E. J.: Identification of human chromosomes by DNA-binding fluorescent agents. Chromosoma 30, 215?227 (1970)
3. Chandley, A. C., Edmond, P.: Meiotic studies on a subfertile patient with a ring Y chromosome. Cytogenetics 10, 295?304 (1971)
4. Fabris, C., Franceschini, P., Bogetti, G., Ponzone, A.: Sex chromosome anomalies detection and fluorescence. Acta Paediatr. Scand. 62, 307?308 (1973)
5. German, J. L., Simpson, J. L., McLemore, G. A., Jr.: Abnormalities of human sex chromosomes. 1. A ring Y without mosaicism. Ann. Genet. (Paris) 16, 225?231 (1973)