%0 Journal Article %A Mombeni Godajdar, Bijan, Niknam, Ebrahim %T Synthesis of tri and four substituted imidazoles derivatives using zinc oxid nanotubes modified by SiO2 as a powerful and reusable catalyst %J Journal of the Iranian Chemical Research %V 5 %N 4 %P 231-239 %D 2012 %R %U https://sanad.iau.ir/fa/Article/1085410