SUCHOMELOVÁ, Jana, Eva TÁBORSKÁ a Hana BOCHOŘÁKOVÁ. HPLC method for analysis of selected groups of isoquinoline alkalois. In Sborník 11th International Symposium on Separation Science. Pardubice: Univerzita Pardubice, 2005, s. 250-251. ISBN 80-7194-771-7.
TOUŠEK, Jaromír, Kateřina MALIŇÁKOVÁ, Jiří DOSTÁL a Radek MAREK. Theoretical and experimental NMR study of protopine hydrochloride isomers. Magnetic Resonance in Chemistry. John Wiley & Sons, Ltd., 2005, roč. 43, č. 1, s. 578-581. ISSN 0749-1581.