| article html file updated | 9 February 2020 11:25 CET | Update | https://www.mdpi.com/1996-1073/11/4/755 |
| article html file updated | 2 October 2019 00:20 CEST | Update | - |
| article html file updated | 1 May 2019 08:24 CEST | Update | - |
| article html file updated | 17 April 2019 08:19 CEST | Update | - |
| article html file updated | 29 March 2019 10:10 CET | Update | - |
| article html file updated | 1 May 2018 08:40 CEST | Update | - |
| article html file updated | 27 March 2018 10:24 CEST | Original file | - |
| article xml uploaded. | 27 March 2018 10:23 CEST | Original file | https://www.mdpi.com/1996-1073/11/4/755/xml |
| article pdf uploaded. | 27 March 2018 10:23 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/755/pdf |
