| article html file updated | 8 February 2020 21:15 CET | Update | https://www.mdpi.com/1999-4907/8/11/442 |
| article html file updated | 28 September 2019 11:53 CEST | Update | N/A |
| article html file updated | 2 May 2019 14:52 CEST | Update | N/A |
| article html file updated | 30 November 2017 16:07 CET | Update | N/A |
| article html file updated | 15 November 2017 10:12 CET | Original file | N/A |
| article xml uploaded. | 15 November 2017 10:11 CET | Original file | https://www.mdpi.com/1999-4907/8/11/442/xml |
| article pdf uploaded. | 15 November 2017 10:11 CET | Version of Record | https://www.mdpi.com/1999-4907/8/11/442/pdf |
