| article html file updated | 8 February 2020 22:37 CET | Update | https://www.mdpi.com/1996-1073/10/12/1977 |
| article html file updated | 28 September 2019 20:30 CEST | Update | - |
| article html file updated | 2 May 2019 11:50 CEST | Update | - |
| article html file updated | 18 April 2019 09:26 CEST | Update | - |
| article html file updated | 2 January 2018 18:44 CET | Update | - |
| article html file updated | 29 November 2017 15:00 CET | Original file | - |
| article xml uploaded. | 29 November 2017 14:59 CET | Update | https://www.mdpi.com/1996-1073/10/12/1977/xml |
| article xml uploaded. | 29 November 2017 14:59 CET | Original file | - |
| article pdf uploaded. | 29 November 2017 14:59 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/1977/pdf |
