PETROŠKEVIČIUS, Petras; OBUCHOVSKI, Romuald. Investigation of possibilities for astronomical meridian determination by the hour angle of the Sun. Geodesy and Cartography, [S. l.], v. 32, n. 1, p. 23–28, 2012. DOI: 10.3846/13921541.2006.9636685. Disponível em: https://journals.vilniustech.lt/index.php/GAC/article/view/10959. Acesso em: 9 may. 2025.