D. Clark, Robin; R. Kern, John; J. Kurz, Lilia; T. Nelson, Janis. Preparation of Enatiomerically Pure Decahydro-6H-isoquino[2,1-g][1,6]naphthyridines Utilizing the Openshaw-Whittaker Hexahydrobenzo[a]quinolizinone Resolution. Heterocycles. 1990, 31 (2): 353. doi:10.3987/COM-89-5250.
André B. Charette "3-Bromocamphor-8-sulfonic Acid" Encyclopedia of Reagents for Organic Synthesis 2001, John Wiley & Sons. doi:10.1002/047084289X.rb283
Reider, Paul J.; Davis, Paul; Hughes, David L.; Grabowski, Edward J. J. Crystallization-induced asymmetric transformation: Stereospecific synthesis of a potent peripheral CCK antagonist. J. Org. Chem. 1987, 52 (5): 955–957. doi:10.1021/jo00381a052.
