Flow around sunspots from p-mode frequency shift measurements

Ming Tsung Sun, Dean Yi Chou, Chia Hsien Lin, Tao Mo Mu, Said Loudagh, B. Bala, I. Jen Huang, Antonio Jimenez, Maria Cristina Rabello-Soares, Guoxiang Ai, Gwo Ping Wang, Harold Zirin, William Marquette, Shuhrat Ehgamberdiev, Shukur Khalikov