(published in May 9, 2023)
General relativity (historical)
Reissner–Nordström metric
Reissner–Nordström metric - Wikipedia
https://en.wikipedia.org/wiki/Reissner%E2%80%93Nordstr%C3%B6m_metric
Hans Reissner
Über die Eigengravitation des elektrischen Feldes nach der Einsteinschen Theorie | Zenodo
https://zenodo.org/record/1447315
Über die Eigengravitation des elektrischen Feldes nach der Einsteinschen Theorie - Reissner - 1916 - Annalen der Physik - Wiley Online Library
https://onlinelibrary.wiley.com/doi/abs/10.1002/andp.19163550905
Gunnar Nordström
On the Energy of the Gravitation field in Einstein's Theory - NASA/ADS
https://ui.adsabs.harvard.edu/abs/1918KNAB...20.1238N/abstract
No online source.
Hermann Weyl
Zur Gravitationstheorie - Weyl - 1917 - Annalen der Physik - Wiley Online Library
https://onlinelibrary.wiley.com/doi/10.1002/andp.19173591804
George Barker Jeffery
The field of an electron on Einstein’s theory of gravitation | Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character
https://royalsocietypublishing.org/doi/10.1098/rspa.1921.0028
