| article html file updated | 7 February 2020 11:10 CET | Update | https://www.mdpi.com/1996-1073/9/7/517 |
| article html file updated | 5 May 2019 11:07 CEST | Update | - |
| article html file updated | 27 March 2019 09:16 CET | Update | - |
| article html file updated | 27 July 2016 09:47 CEST | Update | - |
| article html file updated | 18 July 2016 10:45 CEST | Update | - |
| article xml uploaded. | 18 July 2016 10:44 CEST | Update | https://www.mdpi.com/1996-1073/9/7/517/xml |
| article pdf uploaded. | 18 July 2016 10:44 CEST | Updated version of record | https://www.mdpi.com/1996-1073/9/7/517/pdf |
| article html file updated | 2 July 2016 09:42 CEST | Original file | - |
| article pdf uploaded. | 2 July 2016 09:39 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/7/517/pdf-vor |
