1. 1) BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, Guide to the Expression of Uncertainty in Measurement (GUM), International Organization for Standardization, Geneva, Switzerland (1993).
2. 2) K. Iizuka: Keisoku ni okeru futasikasa no hyougen gaido (Guide to the Expression of Uncertainty in Measurement), (Nihon Kikaku Kyoukai, Tokyo, 2009).
3. 3) JIS Z 8103:2000, Keisoku yougo (Glossary of terms used in measurement), (Nihon Kikaku Kyoukai, Tokyo, 2000).
4. 4) T. Kobata: Kouaturyoku no Kagaku to Gijutu, 14 (2004) 184 [in Japanese].
5. 5) K. Kobata, M. Kojima and H. Kajikawa: Synthesiology, 4 (2011) 209 [in Japanese].