@misc{indiciae44649c3f4b0e, title = {Hardware development for Gravity Probe-B}, author = {Bardas, D. and Cheung, W. S. and Gill, D. and Hacker, R. and Keiser, G. M.}, year = {1986}, url = {https://ntrs.nasa.gov/citations/19870039383}, note = {Source identifier: 19870039383} }