| article html file updated | 7 February 2020 07:44 CET | Update | https://www.mdpi.com/1996-1073/9/5/314 |
| article html file updated | 5 May 2019 17:42 CEST | Update | - |
| article html file updated | 27 March 2019 02:51 CET | Update | - |
| article html file updated | 26 May 2016 12:24 CEST | Update | - |
| article html file updated | 25 April 2016 09:24 CEST | Original file | - |
| article xml uploaded. | 25 April 2016 09:23 CEST | Original file | https://www.mdpi.com/1996-1073/9/5/314/xml |
| article pdf uploaded. | 25 April 2016 09:23 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/5/314/pdf |
