@article {rayner_new_1989,
	title = {A new aphid from the Cretaceous of Botswana},
	journal = {Palaeontology},
	volume = {32},
	number = {3},
	year = {1989},
	pages = {669{\textendash}673},
	author = {Rayner, R. J. and Waters, S. B.}
}
@article {waters_new_1989,
	title = {A new Hybotine dipteran from the Cretaceous of Botswana},
	journal = {Palaeontology},
	volume = {32},
	number = {3},
	year = {1989},
	pages = {657{\textendash}667},
	author = {Waters, S. B.}
}
@article {waters_cretaceous_1989,
	title = {A Cretaceous dance fly (Diptera: Empididae) from Botswana},
	journal = {Systematic Entomology},
	volume = {14},
	number = {2},
	year = {1989},
	pages = {233{\textendash}241},
	issn = {1365-3113},
	doi = {10.1111/j.1365-3113.1989.tb00280.x},
	url = {http://dx.doi.org/10.1111/j.1365-3113.1989.tb00280.x},
	author = {Waters, S. B.}
}
