Gordon H. Pettengill

1. Radar Astronomy
   1965/09/01 by Gordon H. Pettengill, G. H. Pettengill, I. I. Shapiro +1 · 1 citation
   Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #History and Developments in Astronomy #Radio Astronomy Observations and Technology
2. Fourth Test of General Relativity: Preliminary Results
   1968/05/27 by I. I. Shapiro, Irwin I. Shapiro, G. H. Pettengill +8 · 1 citation
   Physics and Astronomy · #Advanced Differential Geometry Research #Cosmology and Gravitation Theories #Relativity and Gravitational Theory