A. Kohzadian, R. Fathollahi, M. Karami, E. Korani, and A. Zare, “La2O3 as a very effective double‌-functional catalyst for the production of 2-amino-4-aryl-4H-pyrans and Pyrazolopyranopyrimidines”, Iran. J. Catal., vol. 13, no. 3, Sep. 2023, doi: 10.30495/ijc.2023.1990117.2017.