Rao Vidadala, S., Golz, C., Strohmann, C., Daniliuc, C.-G., & Waldmann, H. (2015). Highly Enantioselective Intramolecular 1,3-Dipolar Cycloaddition: A Route to Piperidino-Pyrrolizidines. Angewandte Chemie, 127(2), 661-665. doi:10.1002/ange.201409942.