1. T. Kobata, M. Kojima, Pressure standards and calibration services using pressure balances at NMIJ/AIST, in: Proceedings of 6th International Conference on Advances in Metrology (AdMet-2006), 2006, p. 45.
2. T. Kobata, M. Kojima, H. Kajikawa, in: Proceedings of IMEKO 20th TC3, 3rd TC16 and 1st TC22 International Conference, Merida, Mexico, 2007.
3. M. Kojima, K. Saitou, T. Kobata, Characterization of transfer standard for small differential pressure, in: Proceedings of 6th International Conference on Advances in Metrology (AdMet-2006), 2006, p. 9.