S. Sahrapeyma, F. Shirini, and M. Mamaghani, “One-pot synthesis of pyrimido[4,5-d]pyrimidine derivatives using a new DABCO-based ionic liquid catalyst”, Iran. J. Catal., vol. 14, no. 3, Sep. 2024, doi: 10.57647/j.ijc.2024.1403.31.