| article html file updated | 7 February 2020 18:26 CET | Update | https://www.mdpi.com/1999-4893/9/4/80 |
| article html file updated | 4 May 2019 21:43 CEST | Update | - |
| article html file updated | 28 December 2016 05:28 CET | Update | - |
| article html file updated | 23 November 2016 04:24 CET | Original file | - |
| article xml uploaded. | 23 November 2016 04:23 CET | Update | https://www.mdpi.com/1999-4893/9/4/80/xml |
| article xml uploaded. | 23 November 2016 04:23 CET | Original file | - |
| article pdf uploaded. | 23 November 2016 04:23 CET | Version of Record | https://www.mdpi.com/1999-4893/9/4/80/pdf |
