| article html file updated | 7 February 2020 17:25 CET | Update | https://www.mdpi.com/1999-4907/7/11/260 |
| article html file updated | 4 May 2019 23:38 CEST | Update | N/A |
| article html file updated | 30 November 2016 06:51 CET | Update | N/A |
| article html file updated | 3 November 2016 05:22 CET | Original file | N/A |
| article xml uploaded. | 3 November 2016 05:21 CET | Update | https://www.mdpi.com/1999-4907/7/11/260/xml |
| article xml uploaded. | 3 November 2016 05:21 CET | Original file | N/A |
| article pdf uploaded. | 3 November 2016 05:21 CET | Version of Record | https://www.mdpi.com/1999-4907/7/11/260/pdf |
