@book {Roemer1836,
	title = {Die Versteinerungen der Norddeutschen Oolithen-Gebirges},
	year = {1836},
	pages = {218, 16 pl.},
	publisher = {Im Verlage Hahn{\textquoteright}schen Hofbuchhandlung},
	organization = {Im Verlage Hahn{\textquoteright}schen Hofbuchhandlung},
	address = {Hannover},
	keywords = {BL, TIP},
	url = {http://books.google.com/books?id=pONYAAAAYAAJ},
	author = {Roemer, Friedrich Adolph}
}
@book {Roemer1841,
	title = {Die Versteinerungen des Norddeutschen Kreidegebirges},
	year = {1841},
	pages = {145, 16 pl.},
	publisher = {Im Verlage Hahn{\textquoteright}schen Hofbuchhandlung},
	organization = {Im Verlage Hahn{\textquoteright}schen Hofbuchhandlung},
	address = {Hannover},
	keywords = {RCBS, TIP},
	url = {http://books.google.com/books?id=1apAAAAAcAAJ},
	author = {Roemer, Friedrich Adolph}
}
@article {Roemer1888,
	title = {{\"U}ber eine durch die H{\ae}ufigkeit Hippuriten{\textendash}artiger Chamiden ausgezeichnete fauna der Oberturonen Kreide von Texas},
	journal = {Geologische und Pal{\"a}ontologische Abhandlungen},
	volume = {4},
	year = {1888},
	pages = {281{\textendash}296},
	keywords = {RCBS, TIP},
	url = {http://archive.org/details/geologischeundpa04jena},
	author = {Roemer, Friedrich Adolph}
}
