@misc{indiciae4fb43e73e8f6, title = {Phobos: Close encounter imaging from the Viking Orbiters}, author = {Duxbury, T. C. and Callahan, J. D. and Ocampo, A. C.}, year = {1984}, url = {https://ntrs.nasa.gov/citations/19840024260}, note = {Source identifier: 19840024260} }