1. Self and Non-Self;Burnet,1969
2. Phylogeny of Thymus and Bone Marrow Bursa Cells;Cooper,1976
3. Evolution of Blood Cells;Cooper;Ann. Immunol. (Inst. Pasteur),1976
4. Open question What is the origin and function of the immune system?
5. DODGESON, C.H. Alice in Wonderland.