| article html file updated | 31 August 2025 03:45 CEST | Update | https://www.mdpi.com/2079-9721/7/4/56 |
| article html file updated | 20 July 2022 00:38 CEST | Update | - |
| article html file updated | 14 February 2020 05:14 CET | Update | - |
| article html file updated | 31 December 2019 12:07 CET | Update | - |
| article html file updated | 31 October 2019 18:06 CET | Update | - |
| article pdf uploaded. | 31 October 2019 13:55 CET | Updated version of record | https://www.mdpi.com/2079-9721/7/4/56/pdf |
| article xml uploaded. | 31 October 2019 13:55 CET | Update | https://www.mdpi.com/2079-9721/7/4/56/xml |
| article xml file uploaded | 31 October 2019 13:55 CET | Update | - |
| article html file updated | 30 October 2019 11:59 CET | Original file | - |
| article pdf uploaded. | 30 October 2019 11:58 CET | Version of Record | https://www.mdpi.com/2079-9721/7/4/56/pdf-vor |
| article xml uploaded. | 30 October 2019 11:58 CET | Update | - |
| article xml file uploaded | 30 October 2019 11:58 CET | Original file | - |
