Silica Sulfuric Acid: An Efficient Catalyst for the Direct Conversion of Primary and Secondary Trimethylsilyl Ethers to their Corresponding Ethers under Mild and Heterogeneous Conditions - Zolfigol, Mohammad Ali; Mohammadpoor-Baltork, Iraj; Mirjalili, BiBi Fatemeh; Bamoniri, Abdolhamid (Synlett, 2003)