| article html file updated | 8 February 2020 16:12 CET | Update | https://www.mdpi.com/1999-4907/8/9/345 |
| article html file updated | 27 September 2019 03:34 CEST | Update | - |
| article html file updated | 3 May 2019 01:57 CEST | Update | - |
| article html file updated | 30 September 2017 10:22 CEST | Update | - |
| article html file updated | 14 September 2017 12:46 CEST | Original file | - |
| article xml uploaded. | 14 September 2017 12:45 CEST | Original file | https://www.mdpi.com/1999-4907/8/9/345/xml |
| article pdf uploaded. | 14 September 2017 12:45 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/9/345/pdf |
