1. ALLISON A.C.: Life Science 3, 1415 (1964).
2. AMIEL, J.L.: Rev. Fr. Et. Clin. Biol. 12, 912 (1967).
3. BARSKI, G.: p. 323 in “Comparative Leukemia Research” (R.M. Durcher, ed.). 1 Vol., Basel: Karger 1970.
4. BARSKI, G., YOUN, J.K.: J. Nat. Cancer Inst. 47, 575 (1971).
5. BARTLETT, G.L., ZBAR, B.: J.Nat. Cancer Inst. 50, 1385 (1973).