%0 Journal Article %A Tayebi, Shekoofeh, Niknam, Khodabakhsh %T Synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) via multi-component reactions by using silica-bonded sulfamic acid derivatives %J Iranian Journal of Catalysis %V 2 %N 2 %P 69-74 %D 2012 %R %U https://sanad.iau.ir/fa/Article/1013674