Lepropre, G., & Fastrez, J. (1985). A New Azacyclophane Capable of Binding An Aromatic Molecule Or a Transition-metal Ion. Societes Chimiques Belges. Bulletin, 94(11-12), 1103-1104. https://doi.org/10.1002/bscb.19850941131 (Original work published 1985)