1. Alarcon, R.A.: Fluorometric determination of acrolein and related compounds with m-aminophenol. Anal. Chem.40, 1704?1708 (1968)
2. Brock, N., Hohorst, H.J.: Über die Aktivierung von Cyclophosphamid in vivo und in vitro. Arzneim. Forsch. (Drug Res.)13, 1021?1031 (1963)
3. Brock, N., Hohorst, H.J.: The problem of specificity and selectivity of alkylating cytostatics: Studies on N-2-chloro-ethyl-amido-oxazaphosphorines. Z.Krebsforsch.88, 185?215 (1977)
4. Hohorst, H.J., Zieman, A., Brock, N.: 4-Ketocyclophosphamide, ametabolite of cyclophosphamide. Formation, chemical, and biological properties. Arzneim. Forsch. (Drug Res.)21, 1254?1257 (1971)
5. Hohorst, H.J., Draeger, U., Peter, G., Voelcker, G.: The problem of oncostatic specificity of cyclophosphamide (NSC 26271): studies on the reactions that control the alkylating and cytotoxic activity. Cancer Treat. Rep.60, 309?315 (1976)