@article {kirkpatrick_quantitative_1989,
	title = {A quantitative genetic model for growth, shape, reaction norms, and other infinite-dimensional characters},
	journal = {Journal of mathematical biology},
	volume = {27},
	number = {4},
	year = {1989},
	pages = {429{\textendash}450},
	url = {http://link.springer.com/article/10.1007/BF00290638},
	author = {Kirkpatrick, Mark and Heckman, Nancy}
}
