Citation: Jw. Buchler et T. Dippell, METAL COMPLEXES WITH TETRAPYRROLE LIGANDS - 73 - OXIDATION AND REDUCTION OF CERIUM(IV) SANDWICH COMPLEXES WITH PORPHYRIN LIGANDS LINKED BY ALIPHATIC DIETHER BRIDGES OF VARIABLE CHAIN-LENGTH, EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, (4), 1998, pp. 445-449