Published in Spixiana, in 1991, in volume 14, pages 1-7
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Published in Spixiana, in 1991, in volume 14, pages 249-257
Beobachtungen und Versuche zur Atmung von Arrenurus (Megaluracarus) globator (Müll.). 2. Physiologie
Published in Spixiana, in 1991, in volume 14, pages 259-263
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Published in Spixiana, in 1991, in volume 14, issue 2, pages 189-192
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Published in Spixiana, in 1991, in volume 14, issue 3, pages 265