PT - JOURNAL ARTICLE AU - Richard L. Norgaard TI - Are GNMAs a Good Investment AID - 10.3905/jpm.1978.49 DP - 1978 Oct 31 TA - The Journal of Portfolio Management PG - 49--52 VI - 5 IP - 1 4099 - https://pm-research.com/content/5/1/49.short 4100 - https://pm-research.com/content/5/1/49.full