1. Gropp, A., Marshall, J., Flatz, G., Olbrich, M., Manyanondha, K., Santadusit, A.: Chromosomenpolymorphismus durch überzählige Autosomen. Beobachtungen an der Hausratte (Rattus rattus). Z. Säugetierk. 35, 363?371 (1970)
2. Masuji, H.: Autosomal polymorphism in Dnryu strain rats. Acta med. Okayama 24, 81?91 (1970)
3. Moriwaki, K., Kato, H., Imai, H., Tsuchiya, K., Yosida, T.H.: Geographical distribution of twelve transferrin alleles in black rats of Asia and Oceania. Genetics 79, 295?304 (1975)
4. Yosida, T.H.: Frequency of chromosome polymorphism in pair no. 1, 3, 9 and 13 in black rats collected in Misima. Ann. Rep. nat. Inst. Genet. Japan 21, 55?56 (1971)
5. Yosida, T.H.: Frequencies of chromosome polymorphism (Pairs no. 1, 9 and 13) in the black rat of Japan. Proc. Japan Acad. 52, 405?408 (1976)