November 20, 2023 Fromme, P., E.J. Boekema, and P. Gräber, (1987) Isolation and characterization of a supramolecular complex of subunit III of the ATP-synthase from chloroplasts. Z. Naturforsch, 42c: 1239-1245. Home » Fromme, P., E.J. Boekema, and P. Gräber, (1987) Isolation and characterization of a supramolecular complex of subunit III of the ATP-synthase from chloroplasts. Z. Naturforsch, 42c: 1239-1245.