@article{Zhu2005,
	title = {Spatial sampling design for parameter estimation of the covariance
	function},
	author = {Zhengyuan Zhu and Michael L. Stein},
	day = {01},
	journal = {Journal of Statistical Planning and Inference},
	month = {Oct},
	number = {2},
	pages = {583--603},
	url = {http://www.sciencedirect.com/science/article/B6V0M-4CYTYTS-N/1/e98e73b01184806a4993fb9afc66b1b2},
	volume = {134},
	year = {2005},
	biburl = {http://www.bibsonomy.org/bibtex/288e5310e0b9a57b826e57fb67f885427/smicha},
	keywords = {Fisher information matrix }
}