| article html file updated | 8 February 2020 20:20 CET | Update | https://www.mdpi.com/2310-2861/3/4/41 |
| article html file updated | 28 September 2019 05:42 CEST | Update | - |
| article html file updated | 2 May 2019 16:59 CEST | Update | - |
| article html file updated | 4 November 2017 09:50 CET | Original file | - |
| article xml uploaded. | 4 November 2017 09:48 CET | Update | https://www.mdpi.com/2310-2861/3/4/41/xml |
| article xml uploaded. | 4 November 2017 09:48 CET | Original file | - |
| article pdf uploaded. | 4 November 2017 09:48 CET | Version of Record | https://www.mdpi.com/2310-2861/3/4/41/pdf |
