| article html file updated | 1 September 2025 14:39 CEST | Update | https://www.mdpi.com/2309-608X/6/4/321 |
| article html file updated | 22 August 2025 00:23 CEST | Update | - |
| article html file updated | 23 July 2022 02:56 CEST | Update | - |
| article html file updated | 3 December 2020 12:14 CET | Update | - |
| article pdf uploaded. | 3 December 2020 12:13 CET | Updated version of record | https://www.mdpi.com/2309-608X/6/4/321/pdf |
| article xml uploaded. | 3 December 2020 12:13 CET | Update | https://www.mdpi.com/2309-608X/6/4/321/xml |
| article xml file uploaded | 3 December 2020 12:13 CET | Update | - |
| article html file updated | 3 December 2020 10:26 CET | Update | - |
| article pdf uploaded. | 3 December 2020 10:24 CET | Updated version of record | https://www.mdpi.com/2309-608X/6/4/321/pdf-vor |
| article xml uploaded. | 3 December 2020 10:24 CET | Update | - |
| article xml file uploaded | 3 December 2020 10:24 CET | Update | - |
| article html file updated | 3 December 2020 10:09 CET | Update | - |
| article pdf uploaded. | 3 December 2020 10:07 CET | Updated version of record | https://www.mdpi.com/2309-608X/6/4/321/pdf-vor |
| article xml uploaded. | 3 December 2020 10:07 CET | Update | - |
| article xml file uploaded | 3 December 2020 10:07 CET | Update | - |
| article html file updated | 2 December 2020 13:18 CET | Original file | - |
| article pdf uploaded. | 2 December 2020 13:16 CET | Updated version of record | https://www.mdpi.com/2309-608X/6/4/321/pdf-vor |
| article xml uploaded. | 2 December 2020 13:16 CET | Update | - |
| article xml file uploaded | 2 December 2020 13:16 CET | Original file | - |
| article pdf uploaded. | 27 November 2020 18:59 CET | Version of Record | https://www.mdpi.com/2309-608X/6/4/321/pdf-vor |
