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Kownacki A. 1985. Spring benthic macroinvertebrate communities of selected streams in the High Caucasus (Azerbaijan SSR). Hydrobiologia, 123: 137-144.
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Kownacki A. 1995 The use of chironomid pupal exuvie for ecological characterization of the Upper Vistula (southern Poland). Acta Hydrobiol., 37: 41-50.
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