Diagnostic potential of the Ca II 8542 Å line for solar filaments C. J. Díaz Baso, M. J. Martínez González, A. Asensio Ramos and J. de la Cruz Rodríguez A&A, 623 (2019) A178 Published online: 29 March 2019 DOI: 10.1051/0004-6361/201834793