| article html file updated | 7 February 2020 10:56 CET | Update | https://www.mdpi.com/1996-1073/9/7/496 |
| article html file updated | 5 May 2019 11:32 CEST | Update | - |
| article html file updated | 27 March 2019 08:51 CET | Update | - |
| article html file updated | 27 July 2016 09:33 CEST | Update | - |
| article html file updated | 29 June 2016 09:38 CEST | Original file | - |
| article xml uploaded. | 29 June 2016 09:37 CEST | Original file | https://www.mdpi.com/1996-1073/9/7/496/xml |
| article pdf uploaded. | 29 June 2016 09:37 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/7/496/pdf |
