Representations on Bathymetric Charts - Imayoshi, Bunkichi; Atobe, Osamu; Horikoshi, Masuoki; Imai, Kenzo; Irahara, Akira; Ishii, Kokichi; Ito, Fusao; Nakamura, Osamu; Nishizawa, Kunikazu; Sato, Takahiro; et al. (The International Hydrographic Review, 2015)