| article html file updated | 8 February 2020 16:18 CET | Update | https://www.mdpi.com/1999-4907/8/9/346 |
| article html file updated | 27 September 2019 04:07 CEST | Update | - |
| article html file updated | 3 May 2019 01:46 CEST | Update | - |
| article html file updated | 30 September 2017 10:22 CEST | Update | - |
| article html file updated | 25 September 2017 04:54 CEST | Update | - |
| article xml uploaded. | 25 September 2017 04:53 CEST | Update | https://www.mdpi.com/1999-4907/8/9/346/xml |
| article xml uploaded. | 25 September 2017 04:53 CEST | Update | - |
| article pdf uploaded. | 25 September 2017 04:53 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/9/346/pdf |
| article html file updated | 15 September 2017 13:47 CEST | Original file | - |
| article xml uploaded. | 15 September 2017 13:45 CEST | Original file | - |
| article pdf uploaded. | 15 September 2017 13:45 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/9/346/pdf-vor |
