Patal, Saul. The Chemistry of ethers, crown ethers, hydroxyl groups and their sulphur analogues / - 1st ed / - New York-16 : John Wiley & Sons, Inc.. - p.609-1142,xiv : ISBN: 0-471-27772-X Subjects--Topical Terms: Formulae Dewey Class. No.: E140 / M0.2;1