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. 2018 Jan 16;11(1):141. doi: 10.3390/ma11010141

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Areal distribution of major incineration plants and cement plants in Belgium (black, incineration plants; blue, cement plants) cf. [22,134].