photomètre

[2000] The Trouble with the Instrument: Zöllner's Photometer ; Klaus Staubermann ; Journal for the History of Astronomy 31 (2000) p. 323 [lien]
[2000] To See Or Not To See: The Uses of Photometers and Measurements of Reflective Power ; Xiang Chen ; Perspectives on Science 8 (2000) p. 1 [lien]