【作者】：Luigi Mandolini & Bernardo Masci
【题名】：Template Effects. 2.1 Convenient Syntheses of Crown Ethers Promoted by Ba++ Ion in Aqueous Solution
【期刊】：Synthetic Communications: An International Journal for Rapid Communication of Synthetic Organic Chemistry
【年、卷、期、起止页码】：Volume 9, Issue 9, 1979 ，851-856
【全文链接】：http://www.tandfonline.com/doi/abs/10.1080/00397917908064203