Kohzadian, Alireza, Fathollahi, Rohollah, Karami, Mostafa, Korani, Esmail, Zare, Abdolkarim (2023). La2O3 as a very effective double‌-functional catalyst for the production of 2-amino-4-aryl-4H-pyrans and Pyrazolopyranopyrimidines. *Iranian Journal of Catalysis*, 13(3), 331-340. 10.30495/ijc.2023.1990117.2017