@book {simmons1999important,
	title = {Important bird areas in Namibia},
	number = {31},
	year = {1999},
	publisher = {Directorate of Environmental Affairs, Ministry of Environment and Tourism},
	organization = {Directorate of Environmental Affairs, Ministry of Environment and Tourism},
	author = {Simmons, Robert Edward and Boix-Hinzen, Christian and Barnes, Keith N and Jarvis, Alice M and Robertson, Antony}
}
