| article html file updated | 7 February 2020 15:44 CET | Update | https://www.mdpi.com/1999-4893/9/4/65 |
| article html file updated | 5 May 2019 02:45 CEST | Update | - |
| article html file updated | 28 December 2016 05:10 CET | Update | - |
| article html file updated | 29 September 2016 05:45 CEST | Original file | - |
| article xml uploaded. | 29 September 2016 05:43 CEST | Update | https://www.mdpi.com/1999-4893/9/4/65/xml |
| article xml uploaded. | 29 September 2016 05:43 CEST | Original file | - |
| article pdf uploaded. | 29 September 2016 05:43 CEST | Version of Record | https://www.mdpi.com/1999-4893/9/4/65/pdf |
