Khazaei, Ardeshir, Mohammad Ali Zolfigol, Toktam Faal Rastegar, Gholamabbas Chehardoli, and Shadpour Mallakpour. 2024. “Melamine Trisulfonic Acid (MTSA) As an Efficient Catalyst for the Synthesis of triazolo[1,2-a]indazole-Triones and Some 2H-indazolo[2,1-b]phthalazine-Triones”. Iranian Journal of Catalysis 3 (4). https://oiccpress.com/ijc/article/view/3776.