%0 Journal Article %A Richard L. Norgaard %T Are GNMAs a Good Investment %D 1978 %R 10.3905/jpm.1978.49 %J The Journal of Portfolio Management %P 49-52 %V 5 %N 1 %U https://jpm.pm-research.com/content/iijpormgmt/5/1/49.full.pdf