@article {menemenlis1997adaptation,
	title = {Adaptation of a fast optimal interpolation algorithm to the mapping of oceanographic data},
	journal = {Journal of Geophysical Research: Oceans},
	volume = {102},
	number = {C5},
	year = {1997},
	pages = {10573{\textendash}10584},
	author = {Menemenlis, Dimitris and Fieguth, Paul and Wunsch, Carl and Willsky, Alan}
}
