TY - GEN T1 - On flare predictability based on sunspot group evolution T2 - arXiv PY - 2015/03/16 AU - Korsos M AU - Ludmany A AU - Erdelyi R AU - Baranyi T ED - DO - DOI: 10.48550/arxiv.1503.04634 Y2 - 2025/12/11 ER -