Recherches théoriques et pratiques sur les variomètres unifilaires
By: [par] Lélio I. Gama.
Series: Publicações do Observatório Magnético de Vassouras, no. 1; Publicações do Serviço Magnético ;; no. 1.
Publisher: Ministério de Educaçao e Saúde, Observatório Nacional
Published: 1951
Place of publication: Rio de Janeiro
Language: fre
Number of pages: 125
Subjects: Magnetic variometer