[Wilhelm Foerster in his diaries on the meter conference in Paris].
D003226:Congresses as Topic / Q000266:history; D049672:History, 19th Century; D008373:Manuscripts as Topic; D008792:Metric System / Q000266:history*; D010297:Paris
Wilhelm Foerster in seinen Tagebuchblättern über die Meter-Konferenzen in Paris.