Esmailzadeh, Seyran, and Davood Setamdideh. 2021. “Synthesis and Characterization of Fe3O4/PEG-400/Oxalic Acid Magnetic Nanoparticles As a Heterogeneous Catalyst for the Synthesis of Pyrrolin-2-Ones Derivatives: Scientific Paper”. Journal of the Serbian Chemical Society 86 (11). Belgrade, Serbia:1039-52. https://doi.org/10.2298/JSC210521059E.