| article html file updated | 9 February 2020 04:58 CET | Update | https://www.mdpi.com/2310-2861/4/1/12 |
| article html file updated | 30 September 2019 09:08 CEST | Update | - |
| article html file updated | 1 May 2019 22:14 CEST | Update | - |
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| article html file updated | 31 January 2018 23:14 CET | Update | - |
| article xml uploaded. | 31 January 2018 08:05 CET | Update | https://www.mdpi.com/2310-2861/4/1/12/xml |
| article pdf uploaded. | 31 January 2018 08:05 CET | Updated version of record | https://www.mdpi.com/2310-2861/4/1/12/pdf |
| article html file updated | 31 January 2018 07:26 CET | Original file | - |
| article xml uploaded. | 31 January 2018 07:24 CET | Update | - |
| article xml uploaded. | 31 January 2018 07:24 CET | Original file | - |
| article pdf uploaded. | 31 January 2018 07:24 CET | Version of Record | https://www.mdpi.com/2310-2861/4/1/12/pdf-vor |
