Ostad-Ahmad-Ghorabi, H. ., V. . Sharma Purohit, N. . Seier, Y. . Dereli, and W. . Haas. “Understanding Requirements for a Holistic Tool for Ecodesign-First Steps: Engineering Design”. International Journal of Fundamental Physical Sciences, vol. 1, no. 4, Dec. 2011, pp. 68-73, doi:10.14331/ijfps.2011.330017.