| article html file updated | 7 February 2020 23:46 CET | Update | https://www.mdpi.com/2072-666X/8/2/61 |
| article html file updated | 4 May 2019 10:31 CEST | Update | N/A |
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| article html file updated | 29 June 2017 13:29 CEST | Update | N/A |
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| article html file updated | 20 February 2017 09:08 CET | Original file | N/A |
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| article pdf uploaded. | 20 February 2017 09:07 CET | Version of Record | https://www.mdpi.com/2072-666X/8/2/61/pdf |
