| article html file updated | 8 February 2020 15:03 CET | Update | https://www.mdpi.com/1999-4907/8/9/325 |
| article html file updated | 26 September 2019 21:21 CEST | Update | - |
| article html file updated | 3 May 2019 04:03 CEST | Update | - |
| article html file updated | 30 September 2017 10:24 CEST | Update | - |
| article html file updated | 1 September 2017 12:19 CEST | Original file | - |
| article xml uploaded. | 1 September 2017 12:18 CEST | Original file | https://www.mdpi.com/1999-4907/8/9/325/xml |
| article pdf uploaded. | 1 September 2017 12:18 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/9/325/pdf |
