19/04/05 Paris Observatoire: John Stachel: Einstein's journey from special to general relativity / 19/04/05 conversation: A Rodin, Sasha Add to clipboard MW0000711 · Item · 2005-04-19 Part of Michael Wright Collection Stachel, John
21/11/07 History of Astronomy, Paris Observatoire: J-C Pecker: Durable cosmological heresies from Aristotle to Hoyle & beyond (part 2) Add to clipboard MW0000076 · Item · 2007-11-21 Part of Michael Wright Collection Pecker, J-C