| article html file updated | 7 February 2020 20:01 CET | Update | https://www.mdpi.com/1999-4907/7/12/319 |
| article html file updated | 22 September 2019 13:41 CEST | Update | - |
| article html file updated | 4 May 2019 18:23 CEST | Update | - |
| article html file updated | 27 December 2016 11:48 CET | Update | - |
| article html file updated | 21 December 2016 04:59 CET | Original file | - |
| article xml uploaded. | 21 December 2016 04:58 CET | Original file | https://www.mdpi.com/1999-4907/7/12/319/xml |
| article pdf uploaded. | 21 December 2016 04:58 CET | Version of Record | https://www.mdpi.com/1999-4907/7/12/319/pdf |
