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HŘEBÍČEK, Jiří a Lucie PEKÁRKOVÁ. Key performance indicators for sustainable reporting according to NACE. In EnviroInfo 2008. 22. International Conference on Informatics fo Environmental Protection. Environmental Informatics and Industry Ecology. Aachen: Shaker Verlag, 2008, s. 45-53, 8 s. ISBN 978-3-8322-7313-2.Podrobněji: https://is.muni.cz/publication/777234/cs