TY  - RPRT
TI  - On comparing helioseismic two-dimensional inversion methods
AU  - Schou, J.
AU  - Christensen-Dalsgaard, J.
AU  - Thompson, M. J.
PY  - 1994
UR  - https://ntrs.nasa.gov/citations/19950038096
ID  - 19950038096
ER  -