1. Purification and properties of coproporphyrinogenase;Battle;Biochemical Journal,1965
2. In vitro nutritional requirements of Nippostrongylus brasiliensis.-I. Effects of sterols, sterol derivatives and heme compounds on the free-living stages;Bolla;Comparative Biochemistry and Physiology,1972
3. In vitro nutritional requirements of Nippostrongylus brasiliensis.-II. Effects of heme compounds, porphyrins and bile pigments on the free-living stages;Bolla;Comparative Biochemistry and Physiology,1974
4. Effect of dietary tetrapyrroles on gut pigmentation and perienteric fluid hemoglobin concentration in Ascaris lumbricoides;Cain;International Journal for Parasitology,1973
5. Trennung, Isolierung und Bestimmung von Proto-, Kopro-, Pentacarboxy-, Hexacarboxy-, Heptacarboxy- und Uroporphyrin;Doss;Hoppe-Seyler's Zeitschrift für Physiologische Chemie,1969