@article {6886,
	title = {The shell collection of J. H. Chemnitz in the Zoological Institute, St.-Petersburg},
	journal = {Ruthenica},
	volume = {12},
	number = {1},
	year = {2002},
	pages = {1-18},
	keywords = {bivalvia, isognomon, isognomon isognomum, isognomonidae, mollusca, pinctada, pinctada margaritifera, pinna, pinnidae, pinnoidea, pteriidae, pterioida, pterioidea, taxonomy},
	author = {Martynov, A. V.}
}
@article {1377,
	title = {The shell collection of J. H. Chemnitz in the Zoological Institute, St.-Petersburg},
	journal = {Ruthenica},
	volume = {12},
	number = {1},
	year = {2002},
	pages = {1-18},
	keywords = {bivalvia, isognomon, isognomon isognomum, isognomonidae, mollusca, pinctada, pinctada margaritifera, pinna, pinnidae, pinnoidea, pteriidae, pterioida, pterioidea, taxonomy},
	author = {Martynov, A. V.}
}
