@article {3542,
	title = {Why do males of the dance fly Empis borealis refuse to mate? The importance of female age and size.},
	journal = {Journal of Insect Behavior},
	volume = {2},
	year = {1989},
	pages = {387-395},
	author = {Svensson, B. G. , Petersson, E. and Forsgren, E.}
}
