1. Studies on the chemical constituents of tea. Part III. On a new amide theanine;Sakato;Nippon. Nogeikagaku Kaishi,1949
2. Constituents in tea leaf and their contribution to the taste of green tea liquor;Nakagawa;Jpn Agric. Res. Q.,1970
3. Chemical composition of commercially available Japanese green tea;Goto;Foods Food Ingredients J. Jpn.,1996
4. Some properties of the theanine synthesizing enzyme in tea seedlings;Sasaoka;Agric. Biol. Chem.,1965
5. Metabolism of theanine and its metabolic redistribution in tea plants. VI. Metabolism and regulation of theanine and related compounds;Konishi;Nippon. Dojo-Hiryogaku Zasshi,1969