| article html file updated | 30 August 2025 11:11 CEST | Update | https://www.mdpi.com/1999-5903/11/1/21 |
| article html file updated | 18 July 2022 00:03 CEST | Update | - |
| article html file updated | 11 February 2020 09:53 CET | Update | - |
| article html file updated | 13 October 2019 13:52 CEST | Update | - |
| article html file updated | 27 April 2019 04:38 CEST | Update | - |
| article html file updated | 13 April 2019 00:42 CEST | Update | - |
| article html file updated | 3 April 2019 05:41 CEST | Update | - |
| article html file updated | 29 January 2019 12:45 CET | Update | - |
| article html file updated | 18 January 2019 10:44 CET | Update | - |
| article pdf uploaded. | 18 January 2019 10:42 CET | Updated version of record | https://www.mdpi.com/1999-5903/11/1/21/pdf |
| article xml uploaded. | 18 January 2019 10:42 CET | Update | https://www.mdpi.com/1999-5903/11/1/21/xml |
| article xml file uploaded | 18 January 2019 10:42 CET | Update | - |
| article html file updated | 18 January 2019 09:11 CET | Original file | - |
| article pdf uploaded. | 18 January 2019 09:10 CET | Version of Record | - |
| article xml uploaded. | 18 January 2019 09:10 CET | Update | - |
| article xml file uploaded | 18 January 2019 09:10 CET | Original file | - |