Ojha, K. (2010) “Synthesis of 1,2,4-Trihalophenothiazin-3-ones and Their Conversion into (1,4)-Benzothiazino-(2,3-b)-phenothiazines”, Asian Journal of Chemistry, 13(2), pp. 666–670. Available at: https://asianpubs.org/index.php/ajchem/article/view/22646 (Accessed: 25 November 2024).