RT Journal Article SR Electronic T1 Optimal forward coverage of international fixed–income portfolios JF The Journal of Portfolio Management FD Institutional Investor Journals SP 54 OP 59 DO 10.3905/jpm.1991.409348 VO 17 IS 4 A1 Shmuel Hauser A1 Azriel Levy YR 1991 UL https://pm-research.com/content/17/4/54.abstract AB