Liang, Z.-C., Birch, A. C., Duvall Jr., T. L., Gizon, L., & Schou, J. (2017). Helioseismic travel-time measurements of solar meridional from SDO/HMI and SOHO/MDI. Talk presented at 15th European Solar Physics Meeting. Budapest, Hungary. 2017-09-04 - 2017-09-08.