1. Y. Yordanov, A. Nacheva, S. Tornjova, N. Kondova, B. Dimitrova, and D. Topalova, Anthropology of the Bulgarian Population at the End of the 20th Century (30-40 Years Old Persons) (Prof. M. Drinov Publishing House, Sofia, 2006).
2. W. T. Dempster, “Space requirements of the seated operator, WADC Technical Report 55-159,” Ohio, Wright-Patterson Air Force Base, 1955.
3. C. E. Clauser, J. T. McConville, and J. W. Young, “Weight, volume, and center of mass of segments of the human body, Technical Report AMRL-TR-69-70,” Ohio, Wright-Patterson Air Force Base, 1969.
4. R. F. Chandler, C. E. Clauser, J. T. McConville, H. M. Reynolds, and J. W. Young, “Investigation of inertial properties of the human body, Technical Report AMRL-TR-74-137, ” Wright-Patterson Air Force Base, Ohio, 1975.
5. V. M. Zatsiorsky and V. N. Seluyanov, “The mass and inertia characteristics of the main segments of the human body,” in Biomechanics VIII-B, H. Matsui and K. Kobayashi (Eds) (Human Kinetics, IL, 1983), pp. 1152–1159.