The influence of environmental factors on the structure of caddisfly (Trichoptera) assemblage in the Nišava River (Central Balkan Peninsula)A. Savić, V. Ranđelović, M. Ðorđević, B. Karadžić, M. Ðokić and J. Krpo-ĆetkovićKnowl. Managt. Aquatic Ecosyst., 409 (2013) 03DOI: https://doi.org/10.1051/kmae/2013051