“Preliminary Evaluation of a Recyclable Copper(I) Iodide/[BMIM][BF₄] Catalytic System for the Synthesis of N-Benzyl 17-Spiro-5′-oxazolidin-2′-ones with the Estrane Skeleton” (2025) Hungarian Journal of Industry and Chemistry, 53(2), pp. 101–106. doi:10.33927/hjic-2025-24.