1. Variations in cell populations of transplanted tumors as indicated by studies on the ascites transformation;Klein;Exp Cell Res,1955
2. Permanent modification (mutation?) of a histocompatibility gene in a heterozygous tumor;Klein;J Natl Cancer Inst,1957
3. Humoral and cellular factors in homograft and isograft immunity against sarcoma cells;Klein;Cancer Res,1960
4. Demonstration of resistance against methylcolantrene-induced sarcomas in the primary autochtonous host;Klein;Cancer Res,1960
5. Cytotoxic and neutralization tests with serum, and lymph node cells of isologous mice with induced resistance against Gross lymphomas;Slettenmark;Cancer Res,1962