@article{Daniels2001,
	title = {A Hierarchical Approach to Covariance Function Estimation for Time
	Series},
	author = {Michael J. Daniels and Noel Cressie},
	day = {121},
	journal = {Journal of Time Series Analysis},
	month = {May},
	note = {doi: 10.1111/1467-9892.00222},
	number = {3},
	pages = {253--266},
	url = {http://www.blackwell-synergy.com/doi/abs/10.1111/1467-9892.00222},
	volume = {22},
	year = {2001},
	biburl = {http://www.bibsonomy.org/bibtex/242caacedaa947a50273f458dec615c9d/smicha},
	keywords = {imported }
}