Kuil, M., Goudriaan, P. E., Kleij, A. W., Tooke, D. M., Spek, A. L., van Leeuwen, P. W. N. M., & Reek, J. N. H. (2007). Rigid bis-zinc(II) salphen building blocks for the formation of template-assisted bidentate ligands and their application in catalysis. Dalton Transactions, 22, 2311-2320.