| article html file updated | 25 December 2025 06:30 CET | Update | https://www.mdpi.com/2226-471X/6/1/56 |
| article html file updated | 2 September 2025 01:20 CEST | Update | N/A |
| article html file updated | 25 July 2022 08:40 CEST | Update | N/A |
| article html file updated | 26 March 2021 23:41 CET | Update | N/A |
| article pdf uploaded. | 26 March 2021 10:14 CET | Updated version of record | https://www.mdpi.com/2226-471X/6/1/56/pdf |
| article xml uploaded. | 26 March 2021 10:14 CET | Update | https://www.mdpi.com/2226-471X/6/1/56/xml |
| article xml file uploaded | 26 March 2021 10:14 CET | Update | N/A |
| article xml file uploaded | 26 March 2021 07:42 CET | Update | N/A |
| article pdf uploaded. | 26 March 2021 07:42 CET | Updated version of record | https://www.mdpi.com/2226-471X/6/1/56/pdf-vor |
| article html file updated | 22 March 2021 10:21 CET | Update | N/A |
| article pdf uploaded. | 22 March 2021 10:12 CET | Updated version of record | https://www.mdpi.com/2226-471X/6/1/56/pdf-vor |
| article xml file uploaded | 22 March 2021 10:12 CET | Update | N/A |
| article html file updated | 22 March 2021 09:42 CET | Original file | N/A |
| article pdf uploaded. | 22 March 2021 09:41 CET | Version of Record | https://www.mdpi.com/2226-471X/6/1/56/pdf-vor |
| article xml file uploaded | 22 March 2021 09:41 CET | Original file | N/A |
