TY - JOUR T1 - Filling factors and magnetic field strengths of nanoflare-heated coronal active regions: Yohkoh and MDI observations JO - ASTRONOMY & ASTROPHYSICS PY - 2002/11/01 AU - Jain R AU - Yashiro S ED - DO - DOI: 10.1051/0004-6361:20021247 VL - 394 IS - 3 SP - 1111 EP - 1116 Y2 - 2024/12/22 ER -