@misc{indiciae4844d2f3b3f5, title = {A microprocessor-based position control system for a telescope secondary mirror}, author = {Lorell, K. R. and Barrows, W. F. and Clappier, R. R. and Lee, G. K.}, year = {1983}, url = {https://ntrs.nasa.gov/citations/19830056215}, note = {Source identifier: 19830056215} }