@article {561,
	title = {Beretning om en i Sommeren 1849 foretagen zoologisk Reise i Lofoten og Finmarken},
	journal = {Nytt Magasin for Naturvidenskapene},
	volume = {6},
	year = {1851},
	pages = {121-125, 190-211},
	author = {Sars, M.}
}
@article {499,
	title = {On the Gephyrea of the Atlantic coast of the United States},
	journal = {Proceedings of the American Association for the Advancement of Science, 5th meeting},
	volume = {5},
	year = {1851},
	pages = {39-42},
	author = {Pourtales, LFde}
}
@book {213,
	title = {Systema Helminthum},
	year = {1851},
	note = {have only pages 554-556, 55-70},
	publisher = {Braumiller},
	organization = {Braumiller},
	address = {Vindobonae},
	author = {Diesing, K. M.}
}
