Swain, A. ., Kolanji, K. ., Stapper, C. ., & Ravat, P. . (2021). <i>C</i><sub>2</sub>- and <i>C</i><sub>1</sub>-Symmetric Configurationally Stable Pyrene-Fused 5 Helicenes Connected via Hexagonal and Heptagonal Rings. Organic Letters, 23(4), 1339-1343. https://doi.org/10.1021/acs.orglett.1c00005 (Original work published 2021)