Bencker, Henri. «Preparative Tables for the Determination of the Longitude (time) by the Method of Equal Altitudes of Various Stars: Calculated and Published by the Hydrographic Department of the Imperial Japanese Navy, Tokyo (1921-1940) (A Review)». The International Hydrographic Review, no. 2 (mayo 28, 2018). Accedido julio 18, 2024. https://journals.lib.unb.ca/index.php/ihr/article/view/27141.