1. Bodmer, W. F.: Evolutionary significance of the HL-A system. Nature (Lond.)237, 139?145 (1972)
2. Dausset, J.: Iso-leuco-anticorps. Acta haemat. (Basel)20, 156?166 (1958)
3. Günther, E., Albert, E., Küppers, F., Bender, K.: The biological significance of histocompatibility antigens. Report on a colloquium held at Titisee (Schwarzwald), October 14?15, 1971. Humangenetik14, 173?195 (1972)
4. Högman, C. F., Lindblom, J. B., Säfwenberg, J.: A new allele (U 18) in the HL-A-system. Vox Sang. (Basel)24, 187?190 (1973)
5. Kissmeyer-Nielsen, F., Kjerbye, K. E.: Lymphocytotoxic microtechnique, purification of lymphocytes by flotation. Histocompatibility testing, pp. 381?383. Copenhagen: Munksgaard 1967