Safaei-Ghomi, J. et al. 2024. Synthesis of methyl 6-amino-5-cyano-4-aryl-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates using nanocrystalline ZnZr4(PO4)6 ceramics as an efficient catalyst. Iranian Journal of Catalysis. 6, 4 (Feb. 2024).