| article html file updated | 9 February 2020 03:02 CET | Update | https://www.mdpi.com/2075-1702/6/1/2 |
| article html file updated | 29 September 2019 21:51 CEST | Update | - |
| article html file updated | 2 May 2019 02:18 CEST | Update | - |
| article html file updated | 18 April 2019 00:33 CEST | Update | - |
| article html file updated | 28 March 2019 15:30 CET | Update | - |
| article html file updated | 27 March 2018 15:38 CEST | Update | - |
| article pdf uploaded. | 14 January 2018 10:45 CET | Version of Record | https://www.mdpi.com/2075-1702/6/1/2/pdf |
| article html file updated | 14 January 2018 10:39 CET | Original file | - |
| article xml uploaded. | 14 January 2018 10:38 CET | Update | https://www.mdpi.com/2075-1702/6/1/2/xml |
| article xml uploaded. | 14 January 2018 10:38 CET | Update | - |
| article xml uploaded. | 14 January 2018 10:38 CET | Update | - |
| article xml uploaded. | 14 January 2018 10:38 CET | Update | - |
| article xml uploaded. | 14 January 2018 10:38 CET | Original file | - |
