| article html file updated | 9 February 2020 04:00 CET | Update | https://www.mdpi.com/1999-4893/11/2/12 |
| article html file updated | 30 September 2019 03:29 CEST | Update | N/A |
| article html file updated | 2 May 2019 00:15 CEST | Update | N/A |
| article html file updated | 17 April 2019 22:45 CEST | Update | N/A |
| article html file updated | 28 March 2019 17:38 CET | Update | N/A |
| article html file updated | 14 March 2018 09:18 CET | Update | N/A |
| article html file updated | 23 January 2018 16:45 CET | Original file | N/A |
| article xml uploaded. | 23 January 2018 16:44 CET | Original file | https://www.mdpi.com/1999-4893/11/2/12/xml |
| article pdf uploaded. | 23 January 2018 16:44 CET | Version of Record | https://www.mdpi.com/1999-4893/11/2/12/pdf |
