Hanusch, Dirk and Zhao, Shulin and Birkhofer, Herbert Fujimoto, Jun and Itoh, Toshihiro and Masui, Keijiro and Umeda, Yasushi (eds.) (2009):
Approaching Social Sustainable Products by Using Requirements Classifications.
In: Eco Design 2009. Sixth International Symposium on Environmentally Conscious Design and Inverse Manufacturing. Proceedings., Sapporo, Japan, Japan Society of Mechanical Engineers, pp. 237-242, [Book Section]

Zhao, Shulin and Hanusch, Dirk and Birkhofer, Herbert Fujimoto, Jun and Itoh, Toshihiro and Masui, Keijiro and Umeda, Yasushi (eds.) (2009):
Sufficiency as an EcoDesign Strategy for Sustainable Products.
In: Eco Design 2009. Sixth International Symposium on Environmentally Conscious Design and Inverse Manufacturing. Proceedings., Sapporo, Japan, Japan Society of Mechanical Engineers, pp. 459-464, [Book Section]