| article html file updated | 9 February 2020 04:02 CET | Update | https://www.mdpi.com/1996-1073/11/2/260 |
| article html file updated | 30 September 2019 03:42 CEST | Update | - |
| article html file updated | 2 May 2019 00:11 CEST | Update | - |
| article html file updated | 17 April 2019 22:41 CEST | Update | - |
| article html file updated | 28 March 2019 17:43 CET | Update | - |
| article html file updated | 14 March 2018 15:15 CET | Update | - |
| article html file updated | 23 January 2018 17:22 CET | Original file | - |
| article xml uploaded. | 23 January 2018 17:21 CET | Update | https://www.mdpi.com/1996-1073/11/2/260/xml |
| article xml uploaded. | 23 January 2018 17:21 CET | Original file | - |
| article pdf uploaded. | 23 January 2018 17:21 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/260/pdf |
