TY - JOUR T1 - Navigator Notes JF - NAVIGATION: Journal of the Institute of Navigation JO - NAVIGATION DO - 10.33012/navi.551 VL - 69 IS - 4 SP - navi.551 AU - Richard B. Langley Y1 - 2022/12/21 UR - https://navi.ion.org/content/69/4/navi.551.abstract N2 - ER -