| article html file updated | 9 February 2020 02:43 CET | Update | https://www.mdpi.com/1996-1073/11/1/173 |
| article html file updated | 29 September 2019 20:09 CEST | Update | - |
| article html file updated | 2 May 2019 02:56 CEST | Update | - |
| article html file updated | 18 April 2019 01:07 CEST | Update | - |
| article html file updated | 28 March 2019 14:47 CET | Update | - |
| article html file updated | 1 February 2018 13:50 CET | Update | - |
| article html file updated | 11 January 2018 16:33 CET | Original file | - |
| article xml uploaded. | 11 January 2018 16:32 CET | Update | https://www.mdpi.com/1996-1073/11/1/173/xml |
| article xml uploaded. | 11 January 2018 16:32 CET | Original file | - |
| article pdf uploaded. | 11 January 2018 16:32 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/173/pdf |
