| article html file updated | 2 September 2025 02:41 CEST | Update | https://www.mdpi.com/2226-471X/6/2/67 |
| article html file updated | 25 July 2022 10:42 CEST | Update | - |
| article html file updated | 4 August 2021 05:57 CEST | Update | - |
| article html file updated | 4 August 2021 05:53 CEST | Update | - |
| article html file updated | 23 June 2021 10:36 CEST | Update | - |
| article pdf uploaded. | 23 June 2021 10:35 CEST | Updated version of record | https://www.mdpi.com/2226-471X/6/2/67/pdf |
| article xml uploaded. | 23 June 2021 10:35 CEST | Update | https://www.mdpi.com/2226-471X/6/2/67/xml |
| article xml file uploaded | 23 June 2021 10:35 CEST | Update | - |
| article html file updated | 11 April 2021 05:34 CEST | Update | - |
| article html file updated | 11 April 2021 05:18 CEST | Update | - |
| article html file updated | 6 April 2021 16:53 CEST | Update | - |
| article pdf uploaded. | 6 April 2021 16:52 CEST | Updated version of record | https://www.mdpi.com/2226-471X/6/2/67/pdf-vor |
| article xml file uploaded | 6 April 2021 16:52 CEST | Update | - |
| article html file updated | 3 April 2021 12:43 CEST | Update | - |
| article pdf uploaded. | 3 April 2021 12:42 CEST | Updated version of record | https://www.mdpi.com/2226-471X/6/2/67/pdf-vor |
| article xml file uploaded | 3 April 2021 12:42 CEST | Update | - |
| article html file updated | 3 April 2021 12:09 CEST | Original file | - |
| article xml file uploaded | 3 April 2021 12:08 CEST | Update | - |
| article pdf uploaded. | 3 April 2021 12:08 CEST | Version of Record | https://www.mdpi.com/2226-471X/6/2/67/pdf-vor |
