1. Beiträge zur Kenntnis des Bilirubins und Hämins;Küster;Hoppe Seylers Z. Physiol. Chem.,1912
2. Synthese des Hämatoporphyrins, Protoporphyrins und Hämins;Fischer;Justus Liebigs Ann. Chem.,1929
3. Heme A of Cytochrome c Oxicase. Structure and Properties: Comparisons With Hemes B, C, and S and Derivatives;Caughey;J. Biol. Chem.,1975
4. Absolute Configuration of the Hydroxyfarnesylethyl Group of Haem A, Determined by X-ray Structural Analysis of Bovine Heart Cytochrome c Oxidase Using Methods Applicable at 2.8 Angstrom Resolution;Yamashita;Acta Crystallogr. D Biol. Crystallogr.,2005
5. Proposed Structure of Heme d, a Prosthetic Group of Bacterial Terminal Oxidases;Timkovich;J. Am. Chem. Soc.,1985