A flux-independent increase in outflows prior to the emergence of active regions on the Sun

- Schunker, H., Roland-Batty, W., Birch, A. C., Braun, D. C., Cameron, R. H., Gizon, L.

Evolution of the magnetic field and flows of solar active regions with persistent magnetic bipoles before emergence

- Alley, C.S., Schunker, H.