DIAGNOSTIC LINE RATIOS FOR HIGHLY IONIZED IONS OF THE BERYLLIUM ISOELECTRONIC SEQUENCE AND A COMPARISON WITH SOLAR OBSERVATIONAL DATA S. M. McCANN, F. P. KEENAN et K. G. WIDINGJ. Phys. Colloques, 50 C1 (1989) C1-571-C1-576DOI: https://doi.org/10.1051/jphyscol:1989161
