Ulč, J.; Nečas, D.; Koukal, P.; Havlicek, V.; Tošner, Z.; Hybelbauerová, S.; Kotora, M. Chiral Unsymmetrically Substituted Bipyridine N,N-Dioxides as Catalysts for the Allylation of Aldehydes. European Journal of Organic Chemistry 2018, No. 37, 5109-5116 DOI: 10.1002/ejoc.201800485.