@misc{indiciae3a6de3049616, title = {Development of the NASA VALT digital navigation system}, author = {Mcconnell, W. J., Jr. and Skutecki, E. R. and Calzado, A. J.}, year = {1975}, url = {https://ntrs.nasa.gov/citations/19760008052}, note = {Source identifier: 19760008052} }