| article html file updated | 29 August 2025 23:50 CEST | Update | https://www.mdpi.com/2079-6374/6/4/55 |
| article html file updated | 16 July 2022 03:45 CEST | Update | - |
| article html file updated | 7 February 2020 17:23 CET | Update | - |
| article html file updated | 4 May 2019 23:42 CEST | Update | - |
| article html file updated | 28 December 2016 10:56 CET | Update | - |
| article html file updated | 23 November 2016 05:14 CET | Update | - |
| article xml uploaded. | 23 November 2016 05:13 CET | Update | https://www.mdpi.com/2079-6374/6/4/55/xml |
| article pdf uploaded. | 23 November 2016 05:13 CET | Updated version of record | https://www.mdpi.com/2079-6374/6/4/55/pdf |
| article html file updated | 2 November 2016 12:46 CET | Original file | - |
| article xml uploaded. | 2 November 2016 12:45 CET | Original file | - |
| article pdf uploaded. | 2 November 2016 12:45 CET | Version of Record | https://www.mdpi.com/2079-6374/6/4/55/pdf-vor |
