Drogi Publiczne > 2021 > nr 4 > 26--30
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journal ISSN : | 2658-1523 |
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Bibliography
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1. Meijer, Johan & Huijbregts, Mark & Schotten, Kees & Schipper, Aafke.: Global patterns of current and future road infrastructure. "Environmental Research Letters", 13.10.1088/1748-9326/aabd42.
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2. http://asphaltmagazine.com/94percent/.
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3. Wikipedia