The Pyranometer, a radiation measuring device, much used by the Astrophysical Observatory […] (titre original)

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inconnu, “The Pyranometer, a radiation measuring device, much used by the Astrophysical Observatory […] (titre original),” Bibliothèque numérique - Observatoire de Paris, consulté le 19 novembre 2024, https://bibnum.obspm.fr/ark:/11287/9j7lb.