Doukas, I. D., Ampatzidis, D. e Kampouris, V. (2017) “THE VALIDATION OF THE TRANSFORMATION BETWEEN AN OLD GEODETIC REFERENCE FRAME AND A MODERN REFERENCE FRAME, BY USING EXTERNAL SPACE TECHNIQUES SITES: THE CASE STUDY OF THE HELLENIC GEODETIC REFERENCE SYSTEM OF 1987”, Boletim de Ciências Geodésicas, 23(3). Disponível em: https://revistas.ufpr.br/bcg/article/view/55432 (Acessado: 5 janeiro 2025).