About SIEFERMANN-HARMS D
About Univ. Tuebingen, FRG
About HERTZBERG S
About Univ. Trondheim, Norway
About BORCH G
About Technical Univ. Denmark
About LIAAEN-JENSEN S
About Univ. Trondheim, Norway
About Phytochemistry
About lettuce
About ラクツカキサンチン
About Plant taxonomy
About Carotenoids,other terpenoids
About レタス
About ε-カロテン
About ジオール