双子のパラドックス
二次参考文献

↑  Crowell, Benjamin (2000) (英語). The Modern Revolution in Physics (illustrated ed.). Light and Matter. p. 23. ISBN 978-0-9704670-6-5. https://books.google.com/books?id=OMs-_JK-wncC  23ページの抜粋
↑  Serway, Raymond A.; Moses, Clement J.; Moyer, Curt A. (2004) (英語). Modern Physics (3rd ed.). Cengage Learning. p. 21. ISBN 978-1-111-79437-8. https://books.google.com/books?id=uTM8AAAAQBAJ  21ページの抜粋
↑  D'Auria, Riccardo; Trigiante, Mario (2011) (英語). From Special Relativity to Feynman Diagrams: A Course of Theoretical Particle Physics for Beginners (illustrated ed.). Springer Science & Business Media. p. 541. ISBN 978-88-470-1504-3. https://books.google.com/books?id=R-qIh6kd8d0C  541ページの抜粋
↑  Ohanian, Hans C.; Ruffini, Remo (2013) (英語). Gravitation and Spacetime (3rd ed.). Cambridge University Press. p. 176. ISBN 978-1-139-61954-7. https://books.google.com/books?id=JVQhAwAAQBAJ  176ページの抜粋
↑  Hawley, John F.; Holcomb, Katherine A. (2005) (英語). Foundations of Modern Cosmology (illustrated ed.). Oxford University Press. p. 203. ISBN 978-0-19-853096-1. https://books.google.com/books?id=s5MUDAAAQBAJ  203ページの抜粋
↑  P. Mohazzabi, Q. Luo; J. of Applied Mathematics and Physics, 2021, 9, 2187–2192ページ
↑  Debs, Talal A.; Redhead, Michael L.G. (1996). “The twin "paradox" and the conventionality of simultaneity” (英語). American Journal of Physics 64 (4):  384–392. Bibcode: 1996AmJPh..64..384D. doi:10.1119/1.18252.
↑  Miller, Arthur I. (1981) (英語). Albert Einstein's special theory of relativity. Emergence (1905) and early interpretation (1905–1911). Reading: Addison–Wesley. pp. 257–264. ISBN 0-201-04679-2. https://archive.org/details/alberteinsteinss0000mill/page/257
↑  Max Jammer (2006) (英語). Concepts of Simultaneity: From Antiquity to Einstein and Beyond. The Johns Hopkins University Press. p. 165. ISBN 0-8018-8422-5. https://books.google.com/books?id=vuTXBPvswOwC&pg=PA165
↑  Schutz, Bernard (2003) (英語). Gravity from the Ground Up: An Introductory Guide to Gravity and General Relativity (illustrated ed.). Cambridge University Press. p. 207. ISBN 978-0-521-45506-0. https://books.google.com/books?id=P_T0xxhDcsIC 207ページの抜粋
↑  Baez, John (1996年). “Can Special Relativity Handle Acceleration?” (英語). 2017年5月30日閲覧。
↑  “How does relativity theory resolve the Twin Paradox?” (英語). Scientific American. 2017年5月30日閲覧。
↑  David Halliday et al., The Fundamentals of Physics, John Wiley and Sons, 1997
↑  Paul Davies  About Time, Touchstone 1995, ppf 59.
↑  John Simonetti. “Frequently Asked Questions About Special Relativity - The Twin Paradox” (英語). Virginia Tech Physics. 2020年5月25日閲覧。
↑  Resnick, Robert (1968). “Supplementary Topic B: The Twin Paradox” (英語). Introduction to Special Relativity. place:New York: John Wiley & Sons, Inc.. p. 201. ISBN 0-471-71725-8. LCCN 67-31211. https://archive.org/details/introductiontosp0000resn . August Kopff, Hyman Levy（翻訳者）, The Mathematical Theory of Relativity (London: Methuen & Co., Ltd., 1923), p. 52, G.J. Whitrow の引用, The Natural Philosophy of Time (New York: Harper Torchbooks, 1961), p. 215.
↑  J.B. Kennedy (2014) (英語). Space, Time and Einstein: An Introduction (revised ed.). Routledge. p. 39. ISBN 978-1-317-48944-3. https://books.google.com/books?id=bdjfBQAAQBAJ  39ページの抜粋
↑  Richard A. Mould (2001) (英語). Basic Relativity (illustrated, herdruk ed.). Springer Science & Business Media. p. 39. ISBN 978-0-387-95210-9. https://books.google.com/books?id=lfGE-wyJYIUC  39ページの抜粋
↑  Jones, Preston; Wanex, L.F. (February 2006). “The clock paradox in a static homogeneous gravitational field”. Foundations of Physics Letters 19 (1):  75–85. doi:10.1007/s10702-006-1850-3. https://arxiv.org/abs/physics/0604025.