| article html file updated | 9 February 2020 02:39 CET | Update | https://www.mdpi.com/2310-2861/4/1/7 |
| article html file updated | 29 September 2019 19:45 CEST | Update | - |
| article html file updated | 2 May 2019 03:06 CEST | Update | - |
| article html file updated | 18 April 2019 01:16 CEST | Update | - |
| article html file updated | 28 March 2019 14:36 CET | Update | - |
| article html file updated | 11 January 2018 08:00 CET | Original file | - |
| article xml uploaded. | 11 January 2018 07:59 CET | Update | https://www.mdpi.com/2310-2861/4/1/7/xml |
| article xml uploaded. | 11 January 2018 07:59 CET | Original file | - |
| article pdf uploaded. | 11 January 2018 07:59 CET | Version of Record | https://www.mdpi.com/2310-2861/4/1/7/pdf |
