@article {VanderHorst1921,
	title = {The Madreporaria of the Siboga Expedition. Part II. Fungida},
	journal = {Siboga-Expeditie},
	volume = {16b},
	year = {1921},
	pages = {53{\textendash}98},
	keywords = {SDC, TIP},
	author = {van der Horst, C J}
}
@article {VanderHorst1922,
	title = {The Madreporaria of the Siboga Expedition. Part III: Eupsammidae},
	journal = {Siboga-Expeditie},
	volume = {16c},
	year = {1922},
	pages = {47{\textendash}75},
	url = {http://archive.org/details/sibogaexpeditie92sibo},
	author = {van der Horst, C J}
}
@book {VanderHorst1927,
	title = {Eupsammid corals from South Africa},
	series = {Report No. 5 for the year 1925, Special Report 2},
	year = {1927},
	pages = {7},
	publisher = {Union of South Africa Fisheries and Marine Biological Survey},
	organization = {Union of South Africa Fisheries and Marine Biological Survey},
	keywords = {SDC, TIP},
	author = {van der Horst, C J}
}
