Spasevska, M., J. B. Bogdanov, and H. Babunovska. “Development of Chromatographic Methods for Thebaine Detection and Quantification Along With Some of Related Alkaloid Derivatives”. Macedonian Journal of Chemistry and Chemical Engineering, vol. 34, no. 2, Nov. 2015, pp. 231-43, doi:10.20450/mjcce.2015.685.