| article html file updated | 7 February 2020 13:25 CET | Update | https://www.mdpi.com/1996-1073/9/8/646 |
| article html file updated | 5 May 2019 06:56 CEST | Update | - |
| article html file updated | 27 March 2019 13:50 CET | Update | - |
| article html file updated | 25 August 2016 11:37 CEST | Update | - |
| article html file updated | 17 August 2016 10:12 CEST | Original file | - |
| article xml uploaded. | 17 August 2016 10:10 CEST | Update | https://www.mdpi.com/1996-1073/9/8/646/xml |
| article xml uploaded. | 17 August 2016 10:10 CEST | Original file | - |
| article pdf uploaded. | 17 August 2016 10:10 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/8/646/pdf |
