| article html file updated | 7 February 2020 19:05 CET | Update | https://www.mdpi.com/2072-666X/7/12/220 |
| article html file updated | 22 September 2019 08:49 CEST | Update | N/A |
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| article html file updated | 27 December 2016 11:28 CET | Update | N/A |
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| article xml uploaded. | 5 December 2016 10:58 CET | Original file | https://www.mdpi.com/2072-666X/7/12/220/xml |
| article pdf uploaded. | 5 December 2016 10:58 CET | Version of Record | https://www.mdpi.com/2072-666X/7/12/220/pdf |
