@article {price1993sexual,
	title = {Sexual selection when the female directly benefits},
	journal = {Biological Journal of the Linnean Society},
	volume = {48},
	number = {3},
	year = {1993},
	pages = {187{\textendash}211},
	publisher = {Wiley Online Library},
	author = {Price, Trevor and Schluter, Dolph and Heckman, Nancy E}
}
