(EN) Benedikt P. Klein, Lukas Ruppenthal e Samuel J. Hall, Topology Effects in Molecular Organic Electronic Materials: Pyrene and Azupyrene**, in ChemPhysChem, vol. 22, n. 11, 4 giugno 2021, pp. 1065–1073, DOI:10.1002/cphc.202100222. URL consultato il 14 ottobre 2024.
«The conjugated system of pyrene is best described as a biphenyl with two ethenediyl bridges»