| article html file updated | 30 August 2025 08:15 CEST | Update | https://www.mdpi.com/2079-3197/6/4/55 |
| article html file updated | 17 July 2022 06:24 CEST | Update | - |
| article html file updated | 10 February 2020 18:20 CET | Update | - |
| article html file updated | 9 October 2019 16:42 CEST | Update | - |
| article html file updated | 28 April 2019 15:02 CEST | Update | - |
| article html file updated | 14 April 2019 10:11 CEST | Update | - |
| article html file updated | 1 April 2019 13:02 CEST | Update | - |
| article html file updated | 26 December 2018 04:29 CET | Update | - |
| article pdf uploaded. | 28 October 2018 07:45 CET | Version of Record | https://www.mdpi.com/2079-3197/6/4/55/pdf |
| article xml uploaded. | 28 October 2018 07:45 CET | Update | https://www.mdpi.com/2079-3197/6/4/55/xml |
| article xml file uploaded | 28 October 2018 07:45 CET | Original file | - |
| article html file updated | 28 October 2018 07:44 CET | Original file | - |
