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3. The Glass Menagerie;Williams,1945
4. Bach, K. and Burkhardt, B. (1984) Diatomeen I, Schalen in Natur und Technik [Diatoms I, Shells in Nature and Technics], Cramer Verlag
5. Schmid, A.M.M. (1984) Schalenmorphogenese in Diatomeen [Valve morphogenesis in diatoms]. In Diatomeen I, Schalen in Natur und Technik [Diatoms I, Shells in Nature and Technics] (Bach, K. and Burkhardt, B., eds), pp. 300–317, Cramer Verlag