@article {755,
	title = {Centuria quinta testaceorum novorum. (Contin.)},
	journal = {Zeitschrift f{\"u}r Malakozoologie},
	volume = {9},
	year = {1852},
	pages = {20-29},
	author = {Philippi, R. A.}
}
@inbook {756,
	title = {Die Gattung Ampullaria. In Abbildungen nach der Natur mit Beschreibungen},
	booktitle = {Systematisches Conchylien-Cabinet von Martini und Chemnitz. Neu herausgegeben und vervollst{\"a}ndigt. Ersten Bandes zwanzigste Abtheilung},
	year = {1851},
	pages = {74 pp. pls. A, 1-21},
	publisher = {Bauer \& Raspe},
	organization = {Bauer \& Raspe},
	address = {N{\"u}rnberg [= Nuremberg]},
	author = {Philippi, R. A.}
}
@article {757,
	title = {Centuria tertia testaceorum novorum. (Contin.)},
	journal = {Zeitschrift f{\"u}r Malakozoologie},
	volume = {6},
	year = {1849},
	pages = {17-26},
	author = {Philippi, R. A.}
}
