RT Journal Article SR Electronic T1 Measuring Changes in Corporate Credit Quality JF The Journal of Fixed Income FD Institutional Investor Journals SP 27 OP 41 DO 10.3905/jfi.1994.408104 VO 4 IS 1 A1 Lea V. Carty A1 Jerome S. Fons YR 1994 UL https://pm-research.com/content/4/1/27.abstract AB