| article html file updated | 7 February 2020 19:34 CET | Update | https://www.mdpi.com/2072-666X/7/12/228 |
| article html file updated | 22 September 2019 11:14 CEST | Update | - |
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| article html file updated | 27 December 2016 11:31 CET | Update | - |
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| article xml uploaded. | 14 December 2016 04:14 CET | Update | https://www.mdpi.com/2072-666X/7/12/228/xml |
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| article pdf uploaded. | 14 December 2016 04:14 CET | Version of Record | https://www.mdpi.com/2072-666X/7/12/228/pdf |