1. The NRAO tape-recorder interferometer system
2. Positions of Radio Sources from Long-Baseline Interferometry
3. The spectrum of clipped noise
4. From unpublished data by a group from Massachusetts Inst. of Technol. (B. F. Burke, K. Y. Lo, and G. D. Papadopoulos), Naval Res. Lab. (K. J. Johnston and S. H. Knowles), and Smithsonian Astrophys. Observatory (J. M. Moran).
5. A. R. Whitney, Ph.D. Thesis, Elec. Eng. Dept., Massachusetts Inst. of Technol. (1974).