Literature

Authors	Year	Title
P. H. Fischer	1963	Mollusques terrestres de l’Indo-Chine et du Yunnan conservés dans la collection de l’École des Mines de Paris
A. Solem	1964	A collection of Non-marine mollusks from Sabah, Malaysia
A. J. Berry	1964	Growth and variation of the shell in certain malayan limestone hill snails
A. J. Berry	1964	The reproduction of the minute cyclophorid snail Opisthostoma (Plectostoma) retrovertens from a Malayan limestone hill
T. Habe	1965	Operculated land molluscs from Southeast Asia
A. J. Berry	1966	Population structure and fluctuations in the snail fauna of a Malayan limestone hill
A. Solem	1966	Sacks of exotic dirt
H. Theodoor Verstappen, Genootschap K. Nederlands	1973	A geomorphological reconnaissance of Sumatra and adjacent islands (Indonesia)
A. Solem, Solem B. K.	1976	Endodontoid land snails from Pacific Islands (Mollusca : Pulmonata : Sigmurethra).
F. G. Thompson	1978	Two new land snails of the Genus Opisthostoma from Borneo (Prosobranchia: Cyclophoracea: Diplommatinidae)
C. Illert	1987	Formulation and solution of the classical seashell problem
J. J. Vermeulen	1991	Notes on the non-marine molluscs of the island of Borneo 2. The genus Opisthostoma (Gastropoda Prosobranchia: Diplommatinidae), part 2
J. J. Vermeulen	1994	Notes on the non-marine molluscs of the island of Borneo. 6. The genus Opisthostoma (Gastropoda Prosobranchia: Diplommatinidae), part 2
E. A. Kay	1995	The IUCN Species Survival Commission The Conservation Biology of Molluscs
S. Panha	1996	A new species of Opisthostoma from Thailand (Prosobranchia: Cyclophoroidea: Diplommatinidae).
J. J. Vermeulen	1996	Notes on the non-marine molluscs of the island of Borneo 8. The genus Arinia; additions to the genera Diplommatina and Opisthostoma (Gastropoda Prosobranchia: Diplommatinidae)
J. Vermeulen, Whitten T.	1999	Biodiversity and cultural property in the management of limestone resources

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