Structure and evolution of solar supergranulation using SDO/HMI data Th. Roudier, M. Švanda, M. Rieutord,, J. M. Malherbe, R. Burston and L. Gizon A&A, 567 (2014) A138 Published online: 30 July 2014 DOI: 10.1051/0004-6361/201423577