M. K. Vadlamudi, S. Dhanaraj, S. Yarkala, J. J. Jayapal, and P. K. Kommavarapu, “DEVELOPMENT OF STABILITY INDICATING RP-HPLC METHOD FOR THE DETERMINATION OF RELATED SUBSTANCES IN ATORVASTATIN SOLID DOSAGE FORM AND BULK DRUGS”, Int J Pharm Pharm Sci, vol. 7, no. 12, pp. 184–194, Dec. 2015.