title: The method of photographic plates applied to the study of cosmic radiation.
authors.forename: D
authors.initials: D
authors.lastname: CANALS FRAU
mesh_terms: D006801:Humans; D010781:Photography; D011827:Radiation
keywords: PHOTOGRAPHY; RADIATIONS
vernacular_title: El método de las placas fotográficas aplicado al estudio de la radiación cósmica.