| article html file updated | 7 February 2020 10:59 CET | Update | https://www.mdpi.com/1996-1073/9/7/500 |
| article html file updated | 5 May 2019 11:27 CEST | Update | - |
| article html file updated | 27 March 2019 08:56 CET | Update | - |
| article html file updated | 27 July 2016 09:35 CEST | Update | - |
| article html file updated | 29 June 2016 14:22 CEST | Original file | - |
| article xml uploaded. | 29 June 2016 14:20 CEST | Original file | https://www.mdpi.com/1996-1073/9/7/500/xml |
| article pdf uploaded. | 29 June 2016 14:20 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/7/500/pdf |
