Solar diameter observations with the Astrolabe at Observatório Nacional - Rio de JaneiroE. G. Jilinski, S. P. Puliaev, J. L. Penna, A. H. Andrei, V. Sinceac, F. Chollet and C. DelmasAstron. Astrophys. Suppl. Ser., 130 2 (1998) 317-321DOI: https://doi.org/10.1051/aas:1998228