Khomenko, E., Martinez Pillet, V., Solanki, S. K., del Toro Iniesta, J. C., Gandorfer, A., Bonet, J. A., et al. (2010). Where the Granular Flows Bend. Astrophysical Journal, 723(2), L159-L163. doi:10.1088/2041-8205/723/2/L159.