Conference Paper
Roth, M.; Gizon, L.; Birch, A. C.: Sensitivity kernels for helioseismic travel times in spherical geometry - preliminary results. In: Proceedings of SOHO 18 / GONG 2006 / HELAS I - Beyond the spherical Sun, 7-11 August 2006, Sheffield, UK (Ed. Fletcher, K.). ESA Publ. Div., Noordwijk, The Netherlands (2006)