1. Bagley, Jr., C.M., Bostik, F.W., DeVita, Jr., V.T.: Clinical pharmacology oc cyclophosphamide. Cancer Res. 33, 226?233 (1973)
2. Brock, N., Hohorst, H.J.: Über die Aktivierung von Cyclophosphamid in vivo und vitro. Arzneim. Forsch. 13, 1021?1031 (1963)
3. Brock, N., Gross, R., Hohorst, H.J., Klein, H.O., Schneider, B.: Acitvation of cyclophophamide in man and animals. Cancer 27, 1512?1529 (1971)
4. Brock, N.: Comparative pharmacologic study in vitro and in vivo with cyclophosphamide (NSC-26271), cyclophosphamide metabolites, and plain nitrogen mustard compounds. Cancer Treatm. Rep. 60, 301?308 (1976)
5. Brock, N., Hohorst, H.J.: The problem of specificity and selectivity of alkylating cytostatics: studies on N-2-chloro-ethylamido-oxazaphosphorines. Z. Krebsforsch. 88, 185?215 (1977)