@misc{indiciaedb71a94b85ab, title = {Mars planetary geodesy using earth-based observations of Mars landers}, author = {Edwards, C. D., Jr. and Kahn, R. D. and Folkner, W. M. and Preston, R. A.}, year = {1992}, url = {https://ntrs.nasa.gov/citations/19920069492}, note = {Source identifier: 19920069492} }