The Life Cycle of Active Region Magnetic Fields Cheung, M. C. M. ; van Driel-Gesztelyi, L. ; Martínez Pillet, V. ; Thompson, M. J. Abstract Publication: Solar Magnetic Fields Pub Date: 2018 DOI: 10.1007/978-94-024-1521-6_11 Bibcode: 2018smf..book..317C