@article {258,
	title = {The ultrastructure of the spermatozoa of three species of myobatrachid frogs (Anura, Amphibia) with phylogenetic considerations},
	journal = {Acta Zoologica},
	volume = {73},
	number = {4},
	year = {1992},
	pages = {213-222},
	keywords = {Nectophrynoides},
	author = {Lee, M.S.Y. and B.G.M. Jamieson}
}
@article {259,
	title = {The ultrastructure of the spermatozoa of bufonid and hylid frogs (Anura, Amphibia): implications for phylogeny and fertilization biology},
	journal = {Zoologica Scripta},
	volume = {22},
	year = {1993},
	pages = {309-323},
	keywords = {Nectophrynoides},
	author = {Lee, M.S.Y. and B.G.M. Jamieson}
}
