| article html file updated | 9 February 2020 03:50 CET | Update | https://www.mdpi.com/1996-1073/11/1/257 |
| article html file updated | 30 September 2019 02:38 CEST | Update | - |
| article html file updated | 2 May 2019 00:39 CEST | Update | - |
| article html file updated | 17 April 2019 23:03 CEST | Update | - |
| article html file updated | 28 March 2019 17:16 CET | Update | - |
| article html file updated | 1 February 2018 14:33 CET | Update | - |
| article html file updated | 22 January 2018 08:10 CET | Update | - |
| article xml uploaded. | 22 January 2018 08:09 CET | Update | https://www.mdpi.com/1996-1073/11/1/257/xml |
| article xml uploaded. | 22 January 2018 08:09 CET | Update | - |
| article pdf uploaded. | 22 January 2018 08:09 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/1/257/pdf |
| article html file updated | 21 January 2018 11:14 CET | Original file | - |
| article xml uploaded. | 21 January 2018 11:13 CET | Update | - |
| article xml uploaded. | 21 January 2018 11:12 CET | Original file | - |
| article pdf uploaded. | 21 January 2018 11:12 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/257/pdf-vor |
