| article html file updated | 7 February 2020 12:42 CET | Update | https://www.mdpi.com/1996-1073/9/8/608 |
| article html file updated | 5 May 2019 08:16 CEST | Update | - |
| article html file updated | 27 March 2019 12:12 CET | Update | - |
| article html file updated | 25 August 2016 11:28 CEST | Update | - |
| article html file updated | 2 August 2016 10:40 CEST | Original file | - |
| article xml uploaded. | 2 August 2016 10:38 CEST | Original file | https://www.mdpi.com/1996-1073/9/8/608/xml |
| article pdf uploaded. | 2 August 2016 10:38 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/8/608/pdf |
