シャピロ遅延
Straten, W.; Bailes, M.; Britton, M. et al. (12 Jul 2001). “A test of general relativity from the three-dimensional orbital geometry of a binary pulsar”. Nature 412 (6843): 158–160. doi:10.1038/35084015. ISSN 0028-0836. https://doi.org/10.1038/35084015.
d'Inverno, Ray (1992). Introducing Einstein's Relativity. Clarendon Press. ISBN 0-19-859686-3 Section 15.6 に素晴らしい進んだ学部生レベルのシャピロ効果の紹介が載っている。
Will, Clifford M. (2014). “The Confrontation between General Relativity and Experiment”. Living Reviews in Relativity 17: 4–107.