@inbook {6143,
	title = {Perne},
	booktitle = {Dictionnaire des Sciences Naturelles},
	volume = {38},
	year = {1825},
	note = {PDF},
	pages = {513-515},
	publisher = {F. G. Levrault; Le Normant},
	organization = {F. G. Levrault; Le Normant},
	address = {Strasbourg; Paris},
	keywords = {bivalvia, fossils, mollusca, paleontology, pinctada, pinctada margaritifera, pterioidea},
	author = {Defrance, M. J. L.}
}
@inbook {6141,
	title = {Avicule},
	booktitle = {Dictionnaire des Sciences Naturelles},
	volume = {3},
	year = {1816},
	note = {PDF},
	pages = {141},
	publisher = {F. G. Levrault; Le Normant},
	organization = {F. G. Levrault; Le Normant},
	address = {Strasbourg; Paris},
	keywords = {avicula, bivalvia, fossils, mollusca, paleontology, Pteria, pterioidea, taxonomy},
	author = {Defrance, M. J. L.}
}
