ZIARANI, GHODSI MOHAMMADI, MAHSHID RAHIMIFARD, FATEMEH NOURI, and ALIREZA BADIEI. 2015. “Green One-Pot, Four-Component Synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] Derivatives Using Amino-Functionalized Nanoporous Silica SBA-15 under Solvent-Free Conditions”. Journal of the Serbian Chemical Society 80 (10). Belgrade, Serbia:1265–1272. https://doi.org/10.2298/JSC140930045M.