| article html file updated | 9 February 2020 05:36 CET | Update | https://www.mdpi.com/2072-666X/9/2/70 |
| article html file updated | 30 September 2019 13:11 CEST | Update | - |
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| article html file updated | 14 March 2018 09:36 CET | Update | - |
| article html file updated | 6 February 2018 06:29 CET | Original file | - |
| article xml uploaded. | 6 February 2018 06:28 CET | Original file | https://www.mdpi.com/2072-666X/9/2/70/xml |
| article pdf uploaded. | 6 February 2018 06:28 CET | Version of Record | https://www.mdpi.com/2072-666X/9/2/70/pdf |
