Kulkarni, Shrikant V., et al. “Advanced LC-MS HRMS Strategies and Relative Response Factor Approaches for Impurity Profiling of Asthma Inhalation Drugs: A Critical Review”. Asian Journal of Chemistry, vol. 38, no. 5, May 2026, pp. 1105-16, doi:10.14233/ajchem.2026.35730.