TY - JOUR T1 - Navigator Notes JF - NAVIGATION: Journal of the Institute of Navigation JO - NAVIGATION DO - 10.33012/navi.576 VL - 70 IS - 2 SP - navi.576 AU - Richard B. Langley Y1 - 2023/06/20 UR - https://navi.ion.org/content/70/2/navi.576.abstract N2 - ER -