| article html file updated | 31 August 2025 01:41 CEST | Update | https://www.mdpi.com/1999-5903/11/9/200 |
| article html file updated | 20 July 2022 03:07 CEST | Update | - |
| article html file updated | 13 February 2020 18:47 CET | Update | - |
| article html file updated | 25 September 2019 23:37 CEST | Update | - |
| article html file updated | 23 September 2019 14:56 CEST | Update | - |
| article xml uploaded. | 23 September 2019 14:55 CEST | Update | https://www.mdpi.com/1999-5903/11/9/200/xml |
| article xml uploaded. | 23 September 2019 14:55 CEST | Update | - |
| article pdf uploaded. | 23 September 2019 14:55 CEST | Updated version of record | https://www.mdpi.com/1999-5903/11/9/200/pdf |
| article html file updated | 19 September 2019 14:08 CEST | Update | - |
| article html file updated | 19 September 2019 13:58 CEST | Update | - |
| article html file updated | 19 September 2019 13:46 CEST | Original file | - |
| article pdf uploaded. | 19 September 2019 13:30 CEST | Version of Record | https://www.mdpi.com/1999-5903/11/9/200/pdf-vor |
| article xml uploaded. | 19 September 2019 13:30 CEST | Update | - |
| article xml file uploaded | 19 September 2019 13:30 CEST | Original file | - |
