@article {1225,
	title = { Worker reproduction and policing in social insect colonies. An ESS analysis},
	journal = {J. Evol. Biol.},
	volume = {17},
	year = {2004},
	pages = {1035-1048},
	author = {Wenseleers, T. and Helanter{\"a}, H. and Hart, A. and Ratnieks, F.L.W.}
}
