@article {Rivoirard2001ICES,
	title = {{Correcting for the effect of daylight in abundance estimation of juvenile haddock (Melanogrammus aeglefinus) in the North Sea: an application of kriging with external drift}},
	journal = {ICES Journal of Marine Science},
	volume = {58},
	number = {6},
	year = {2001},
	pages = {1272-1285},
	author = {Rivoirard, J. and Wieland, K.}
}