Zaki, Marco Mounir, et al. “Simultaneous Determination of Bisoprolol Fumarate and Rosuvastatin Calcium in a New Combined Formulation by Validated RP-HPLC”. European Journal of Chemistry, vol. 10, no. 1, Mar. 2019, pp. 52-56, doi:10.5155/eurjchem.10.1.52-56.1815.