| article html file updated | 30 August 2025 03:36 CEST | Update | https://www.mdpi.com/2073-4395/8/4/57 |
| article html file updated | 16 July 2022 10:55 CEST | Update | - |
| article html file updated | 9 February 2020 14:49 CET | Update | - |
| article html file updated | 2 October 2019 20:44 CEST | Update | - |
| article html file updated | 1 May 2019 01:32 CEST | Update | - |
| article html file updated | 17 April 2019 02:07 CEST | Update | - |
| article html file updated | 29 March 2019 18:01 CET | Update | - |
| article html file updated | 1 May 2018 10:15 CEST | Update | - |
| article html file updated | 23 April 2018 07:59 CEST | Update | - |
| article xml uploaded. | 23 April 2018 07:57 CEST | Update | https://www.mdpi.com/2073-4395/8/4/57/xml |
| article pdf uploaded. | 23 April 2018 07:57 CEST | Updated version of record | https://www.mdpi.com/2073-4395/8/4/57/pdf |
| article html file updated | 22 April 2018 10:20 CEST | Original file | - |
| article pdf uploaded. | 22 April 2018 10:19 CEST | Version of Record | https://www.mdpi.com/2073-4395/8/4/57/pdf-vor |
| article xml file uploaded | 22 April 2018 10:19 CEST | Original file | - |
