1) STOLK, A. C. & De B. SCOTT: Studies on the genus <i>Eupenicillium</i> LUDWIG. I. Taxonomy and nomenclature of Penicillia in relation to their sclerotioid ascocarpic status. Persoonia 4: 391-405, 1967
2) YOSHIOKA, H.; K. NAKATSU, M . HAYASHI & K. MIZUNO: The molecular structure of bredinin. Tetrahedron Letters (in press)
4) KUROYANAGI, T.; Y. OTAKA & T. MATSUHASHI: Immunosuppressive therapy. pp 29-47, Igaku Shoin, Tokyo, 1971
5) GRAY, G.D.; M.M. MICKELSON & J.A. GRIM: The immunosuppressive activity of ara-cytidine. I. Effect of antibody-forming cells and humoral antibody. Transplantation 6: 805-817, 1968