Jess, D. B., Andic, A., Mathioudakis, M., Bloomfield, D. S., & Keenan, F. P. (2007). High-frequency oscillations in a solar active region observed with the RAPID DUAL IMAGER. Astronomy and Astrophysics, 473, 943-950. doi:10.1051/0004-6361:20077142.