| article html file updated | 7 February 2020 12:37 CET | Update | https://www.mdpi.com/1999-4893/9/3/51 |
| article html file updated | 5 May 2019 08:28 CEST | Update | - |
| article html file updated | 27 March 2019 11:58 CET | Update | - |
| article html file updated | 29 September 2016 08:15 CEST | Update | - |
| article html file updated | 30 July 2016 08:50 CEST | Original file | - |
| article xml uploaded. | 30 July 2016 08:48 CEST | Update | https://www.mdpi.com/1999-4893/9/3/51/xml |
| article pdf uploaded. | 30 July 2016 08:48 CEST | Version of Record | https://www.mdpi.com/1999-4893/9/3/51/pdf |
