訂正日: 2006/09/29訂正理由: -訂正箇所: 引用文献情報訂正内容: Right : [1] H. Cartan, Problemes globaux dans la théorie des fonctions analytiques de plusieurs variables complexes, Proc. Internat. Congress of Mathematicians (Cambridge, Mass. 1950), vol. 1, Amer. Math. Soc., Providence, R.I., 1952, 152-164. [2] R. S. Millman, Complex Structures on Real Product Bundles with Application to Differential Geometry, Trans. Amer. Math. Soc., 166 (1972), 71-99. [3] A. Morimoto, On Normal Almost Contact Structures, J. Math. Soc. Japan, 15 (1963), 420-436. [4] S. Sasaki, Almost Contact Manifolds, Lecture Note, Math. Inst. Tôhoku Univ., 1965. [5] K. Yano and S. Ishihara, Structure defined by f satisfying f3+f=0, Proc. U. S. -Japan Seminar in Differential Geometry, Kyoto, 1965, 153-166.