| article html file updated | 7 February 2020 19:44 CET | Update | https://www.mdpi.com/1999-4893/9/4/84 |
| article html file updated | 22 September 2019 12:10 CEST | Update | N/A |
| article html file updated | 4 May 2019 18:57 CEST | Update | N/A |
| article html file updated | 28 December 2016 05:29 CET | Update | N/A |
| article html file updated | 16 December 2016 09:41 CET | Original file | N/A |
| article xml uploaded. | 16 December 2016 09:40 CET | Original file | https://www.mdpi.com/1999-4893/9/4/84/xml |
| article pdf uploaded. | 16 December 2016 09:40 CET | Version of Record | https://www.mdpi.com/1999-4893/9/4/84/pdf |
