@article {6682,
	title = {Internal microstructure of the shell of bivalve molluscs},
	journal = {American Zoologist},
	volume = {9},
	year = {1969},
	pages = {663-672},
	keywords = {bivalvia, evolution, isognomonidae, microstructure, mollusca, pteriidae, pterioida, pterioidea},
	author = {Kobayashi, Iwao}
}
@article {1304,
	title = {Internal microstructure of the shell of bivalve molluscs},
	journal = {American Zoologist},
	volume = {9},
	year = {1969},
	pages = {663-672},
	keywords = {bivalvia, evolution, isognomonidae, microstructure, mollusca, pteriidae, pterioida, pterioidea},
	author = {Kobayashi, Iwao}
}
