| article html file updated | 9 February 2020 02:51 CET | Update | https://www.mdpi.com/2073-4409/7/1/8 |
| article html file updated | 29 September 2019 20:53 CEST | Update | - |
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| article html file updated | 1 February 2018 13:59 CET | Update | - |
| article html file updated | 12 January 2018 13:40 CET | Original file | - |
| article xml uploaded. | 12 January 2018 13:39 CET | Original file | https://www.mdpi.com/2073-4409/7/1/8/xml |
| article pdf uploaded. | 12 January 2018 13:39 CET | Version of Record | https://www.mdpi.com/2073-4409/7/1/8/pdf |
