1. A “new” blood-group character related to the ABO system;BHENDE;Lancet,1952
2. CEPPELLINI , R. S. NASSO F. TECILAZICH 1952 La Malattia Emolitica del Neonato Istituto Sieroterapico Milanese Serafino Belfanti Milano :204
3. Observations on the Rh agglutinogen of human blood;FISK;Amer. J. Clin. Path.,1942
4. The red cell antigen PR and its relationship to the P system: the evidence of three more PR families;KORTEKANGAS;Vox Sang.,1965
5. Further observations on individual differences of human blood;LANDSTEINER;Proc. Soc. Exp. Biol. N. Y.,1927