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

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