@article{Jones1992a,
	title = {Information matrices for mixed effects models with applications to
	the optimality of repeated measurements designs},
	author = {B. Jones and J. Kunert and H. P. Wynn},
	journal = {Journal of Statistical Planning and Inference},
	month = {Nov},
	number = {2},
	pages = {261--274},
	url = {http://www.sciencedirect.com/science/article/B6V0M-45GVWVS-S/1/9cb423c55d9615cc4c32e763a2ed8f9d},
	volume = {33},
	year = {1992},
	biburl = {http://www.bibsonomy.org/bibtex/2f3493656c78e041d576196b5e07f1a2e/smicha},
	keywords = {Mixed effects model }
}