TY - JOUR T1 - Case Studies on Pre-eruptive X-class Flares using R-value in the Lower Solar Atmosphere JO - The Astrophysical Journal UR - http://dx.doi.org/10.3847/1538-4357/ad6c33 PY - 2024/10/16 AU - Biswal S AU - Korsós MB AU - Georgoulis MK AU - Nindos A AU - Patsourakos S AU - Erdélyi R ED - DO - DOI: 10.3847/1538-4357/ad6c33 PB - American Astronomical Society VL - 974 IS - 2 SP - 259 EP - 259 Y2 - 2024/12/22 ER -