(2) Y. Tsutsumi, T. Satou, and A. Yosizawa: “Feasibility of Fuel Cell using Dimethyl Ether Fuel”, Advances of Alcohol Fuels, pp. 403-408 (1998)
(3) WWW.nkk.co.jp/envilonment/dem/index.html
(4) Y. Tsutsumi, T. Satou, and A. Yoshizawa: Proc. 12th International Symposium on Alcohol Fuels, pp. 403-409, Tsingh Univ. Press, Beijing, China (1998)