BIRÓ, Péter; THÔNG, Nguyên Chi; WEISZ, Edit. MODELLING OF SECULAR VARIATIONS IN GRAVITY AND IN GEOIDAL UNDULATIONS Periodica Polytechnica Civil Engineering, [S. l.], v. 30, n. 1-2, p. 23–36, 1986. Disponível em: https://pp.bme.hu/ci/article/view/3966. Acesso em: 19 may. 2024.