| article html file updated | 7 February 2020 13:39 CET | Update | https://www.mdpi.com/1999-4893/9/3/56 |
| article html file updated | 5 May 2019 06:32 CEST | Update | - |
| article html file updated | 27 March 2019 14:16 CET | Update | - |
| article html file updated | 29 September 2016 08:18 CEST | Update | - |
| article html file updated | 20 August 2016 12:55 CEST | Original file | - |
| article xml uploaded. | 20 August 2016 12:54 CEST | Update | https://www.mdpi.com/1999-4893/9/3/56/xml |
| article xml uploaded. | 20 August 2016 12:54 CEST | Original file | - |
| article pdf uploaded. | 20 August 2016 12:54 CEST | Version of Record | https://www.mdpi.com/1999-4893/9/3/56/pdf |
