| article html file updated | 9 February 2020 02:16 CET | Update | https://www.mdpi.com/1660-3397/16/1/15 |
| article html file updated | 29 September 2019 17:43 CEST | Update | - |
| article html file updated | 2 May 2019 03:53 CEST | Update | - |
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| article html file updated | 1 February 2018 08:13 CET | Update | - |
| article html file updated | 7 January 2018 12:43 CET | Original file | - |
| article xml uploaded. | 7 January 2018 12:42 CET | Update | https://www.mdpi.com/1660-3397/16/1/15/xml |
| article pdf uploaded. | 7 January 2018 12:42 CET | Version of Record | https://www.mdpi.com/1660-3397/16/1/15/pdf |
