| article html file updated | 9 February 2020 07:07 CET | Update | https://www.mdpi.com/1996-1073/11/2/453 |
| article html file updated | 30 September 2019 22:07 CEST | Update | - |
| article html file updated | 1 May 2019 17:25 CEST | Update | - |
| article html file updated | 17 April 2019 16:46 CEST | Update | - |
| article html file updated | 29 March 2019 00:21 CET | Update | - |
| article html file updated | 14 March 2018 16:28 CET | Update | - |
| article html file updated | 22 February 2018 10:17 CET | Original file | - |
| article xml uploaded. | 22 February 2018 10:15 CET | Original file | https://www.mdpi.com/1996-1073/11/2/453/xml |
| article pdf uploaded. | 22 February 2018 10:15 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/2/453/pdf |
| article pdf uploaded. | 20 February 2018 15:06 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/453/pdf-vor |
