van Delft, Dirk (April 2006), "Albert Einstein in Leiden"(PDF), Physics Today, vol. 59, no. 4, pp. 57–62, Bibcode:2006PhT....59d..57D, doi:10.1063/1.2207039. See p. 57: "In 1912 Ehrenfest succeeded Hendrik Antoon Lorentz (1853–1928) as professor of theoretical physics at Leiden. ... In Leiden, the Ehrenfests moved into a Russian-style villa designed by Ehrenfest’s Russian wife Tatiana Afanashewa, a mathematician."
van Delft, Dirk (April 2006), "Albert Einstein in Leiden"(PDF), Physics Today, vol. 59, no. 4, pp. 57–62, Bibcode:2006PhT....59d..57D, doi:10.1063/1.2207039. See p. 57: "In 1912 Ehrenfest succeeded Hendrik Antoon Lorentz (1853–1928) as professor of theoretical physics at Leiden. ... In Leiden, the Ehrenfests moved into a Russian-style villa designed by Ehrenfest’s Russian wife Tatiana Afanashewa, a mathematician."
leidenuniv.nl
lorentz.leidenuniv.nl
van Delft, Dirk (April 2006), "Albert Einstein in Leiden"(PDF), Physics Today, vol. 59, no. 4, pp. 57–62, Bibcode:2006PhT....59d..57D, doi:10.1063/1.2207039. See p. 57: "In 1912 Ehrenfest succeeded Hendrik Antoon Lorentz (1853–1928) as professor of theoretical physics at Leiden. ... In Leiden, the Ehrenfests moved into a Russian-style villa designed by Ehrenfest’s Russian wife Tatiana Afanashewa, a mathematician."