%0 Journal Article %A Nakhaei, Ahmad, Yadegarian, Sepideh %T Synthesis of Tetrahydrobenzo[a]xanthene-11-one Derivatives Using ZrO2–SO3H as Highly Efficient Recyclable Nano-catalyst %J Journal of Applied Chemical Research %V 11 %N 3 %P 72-83 %D 2017 %R %U https://sanad.iau.ir/fa/Article/865639