1. Kang, D. -I., Song, H. -K. and Sawla, A., 1994, “Intercomparison of Force Standards between Korea and Germany,”Journal of the Korean Society of Precision Engineering, Vol. 11, No. 2, pp. 141–148.
2. Kang, D. -I., Song, H. -K., Lee, J. -T., Kumme, R. and Sawla, A., 1998, “Uncertainty Evaluation of 2 MN Hydraulic Force Machine through Intercomparison Measurement,”Proc. IMEKO TC-3/APMF ’98, pp. 353–357.
3. Kim, G. -S., Song, H. -K., Kang, D. -I., Ahn, J. -H. and Kim, W. -S., 1998, “Development of a 100 kN deadweight force standard machine,”Proc. IMEKO TC-3/APMF ’98, pp. 389–394.
4. Paik, J. -S., Kang, D. -I. and Song, H. -K., 1989, “Intercomparison of Force Standards between Korea and Japan,”Journal of Research of KSRI, Vol. 5, pp. 10–18.
5. Park, Y. -K. and Kang, D. -I., 2000, “Pendulum Motion of a Deadweight Force-standard Machine,”Measurement Science and Technology, Vol. 11, pp. 1766–1771.