| article html file updated | 7 February 2020 17:22 CET | Update | https://www.mdpi.com/1996-1073/9/11/899 |
| article html file updated | 4 May 2019 23:46 CEST | Update | N/A |
| article html file updated | 30 November 2016 05:39 CET | Update | N/A |
| article html file updated | 2 November 2016 08:46 CET | Original file | N/A |
| article xml uploaded. | 2 November 2016 08:45 CET | Update | https://www.mdpi.com/1996-1073/9/11/899/xml |
| article xml uploaded. | 2 November 2016 08:45 CET | Update | N/A |
| article xml uploaded. | 2 November 2016 08:44 CET | Original file | N/A |
| article pdf uploaded. | 2 November 2016 08:44 CET | Version of Record | https://www.mdpi.com/1996-1073/9/11/899/pdf |
