1. Ethanol from Methanol
2. Japanese Patent Disclosure Sho 51-149313, Japanese Patent Disclosure Sho 54-125605
3. USP 3,285,948, Japanese Patent Disclosure Sho 56-25123
4. USP 4423257, USP 4423258, USP 4451678, USP 4650911, USP 4605796, USP 4678858, USP 4760171, Japanese Patent 1243594, Japanese Patent 1312748, Japanese Patent 1312749, Japanese Patent 1389494, Japanese Patent 1312752, Japanese Patent 1312753, Japanese Patent 1303682, Japanese Patent 1323682, Japanese Patent 1303686, Japanese Patent 1327538, Japanese Patent 1353765, Japanese Patent 1440108, Japanese Patent 1374266, Japanese Patent 1395552, Japanese Patent 1395555, Japanese Patent 1374270, Japanese Patent 1389530, Japanese Patent 1425889, Japanese Patent 1425890, etc.
5. Japanese Patent Publication Sho 60-42211