| article html file updated | 31 August 2025 10:53 CEST | Update | https://www.mdpi.com/2218-1997/6/2/29 |
| article html file updated | 21 August 2025 23:39 CEST | Update | N/A |
| article html file updated | 20 July 2022 19:25 CEST | Update | N/A |
| article html file updated | 29 February 2020 06:22 CET | Original file | N/A |
| article pdf uploaded. | 29 February 2020 06:21 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/2/29/pdf |
| article xml uploaded. | 29 February 2020 06:21 CET | Update | https://www.mdpi.com/2218-1997/6/2/29/xml |
| article xml file uploaded | 29 February 2020 06:21 CET | Update | N/A |
| article pdf uploaded. | 6 February 2020 12:13 CET | Version of Record | https://www.mdpi.com/2218-1997/6/2/29/pdf-vor |
| article xml file uploaded | 6 February 2020 12:13 CET | Original file | N/A |
