Gao, L.-G. et al. 2012. A Mild and Efficient Procedure for Asymmetric Michael Additions of a-Bromochalcone with Cyclohexanone Catalyzed by Different Bases. Asian Journal of Chemistry. 25, 5 (Dec. 2012), 2561–2564. DOI:https://doi.org/10.14233/ajchem.2013.13457.