November 20, 2023 Fromme, P. and H.T. Witt, (1998) Improved isolation and crystallization of photosystem I for structural analysis. Biochimica et Biophysica Acta (BBA) – Bioenergetics, 1365(1–2): 175-184. Home » Fromme, P. and H.T. Witt, (1998) Improved isolation and crystallization of photosystem I for structural analysis. Biochimica et Biophysica Acta (BBA) – Bioenergetics, 1365(1–2): 175-184.