PT - JOURNAL ARTICLE AU - Robert B Litterman AU - Thomas Iben TI - A Liquid Market Index of Japanese Government Bonds AID - 10.3905/jfi.1991.408012 DP - 1991 Sep 30 TA - The Journal of Fixed Income PG - 60--68 VI - 1 IP - 2 4099 - https://pm-research.com/content/1/2/60.short 4100 - https://pm-research.com/content/1/2/60.full