| article html file updated | 7 February 2020 17:12 CET | Update | https://www.mdpi.com/2073-4352/6/11/139 |
| article html file updated | 5 May 2019 00:03 CEST | Update | - |
| article html file updated | 30 November 2016 06:41 CET | Update | - |
| article html file updated | 29 October 2016 08:46 CEST | Original file | - |
| article xml uploaded. | 29 October 2016 08:45 CEST | Update | https://www.mdpi.com/2073-4352/6/11/139/xml |
| article xml uploaded. | 29 October 2016 08:45 CEST | Original file | - |
| article pdf uploaded. | 29 October 2016 08:45 CEST | Version of Record | https://www.mdpi.com/2073-4352/6/11/139/pdf |
