@article(harry a._hydrographic_2023,
	title = {Hydrographic datum planes},
	journal = {The International Hydrographic Review},
	volume = {29(1)},
	pages = {96-103},
	year = {2023},
	doi = {https://doi.org/10.58440/ihr-29-a10},
	url = {https://ihr.iho.int/articles/hydrographic-datum-planes/},
	author = {Harry A. Marmer},
)