TY - RPRT TI - Apollo experience report guidance and control systems: Primary guidance, navigation, and control system development AU - Holley, M. D. AU - Swingle, W. L. AU - Bachman, S. L. AU - Leblanc, C. J. AU - Howard, H. T. AU - Biggs, H. M. PY - 1976 UR - https://ntrs.nasa.gov/citations/19760016247 ID - 19760016247 ER -