Report to the Centre Nationale de la Recherche Scientifique (not printed) 1935 - A string galvanometer using a liquid jet, Comptes Rendus V. 2 0 0 ~1~18.4-1185 1935 - Optical recording of the second.
Report to the Centre Nationale de la Recherche Scientifique (not printed) 1935 — A string galvanometer using a liquid jet, Comptes Rendus V. 2 0 0 ~1~18.4-1185 1935 — Optical recording of the second.