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A diminutive new species of Glyptothorax (Siluriformes: Sisoridae) from the upper Irrawaddy River basin, Myanmar, with comments on sisorid and erethistid phylogenetic relationships
Hermann Wein," Philosophie als Erfahrungswissenschaft, Sprachphilosophie der Gegenwart", and" Philosophische Anthropologie, Metapolitik und Politische Bildung"(Book Review)
Zeta-Potentiale und Flotierbarkeit von Mineralen, Applied Mineralogy 6: by P. Ney, Springer-Verlag, Vienna, New York, 1973, 214 pages, DM 98 (approx. $38).