T. J. Mohan, D. P. Varma, K. Bhavyasri, K. Prasad, K. Mukkanti, and H. A. Jogia, “HPLC Method for Determining Esomeprazole and its Related Substances in Pharmaceutical Formulations”, ajc, vol. 29, no. 6, pp. 1360–1364, Apr. 2017.