| article html file updated | 2 September 2025 04:31 CEST | Update | https://www.mdpi.com/2218-1997/7/4/109 |
| article html file updated | 25 July 2022 13:06 CEST | Update | N/A |
| article html file updated | 21 April 2021 07:28 CEST | Update | N/A |
| article pdf uploaded. | 21 April 2021 07:27 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/4/109/pdf |
| article xml uploaded. | 21 April 2021 07:27 CEST | Update | https://www.mdpi.com/2218-1997/7/4/109/xml |
| article xml file uploaded | 21 April 2021 07:27 CEST | Update | N/A |
| article html file updated | 20 April 2021 16:09 CEST | Original file | N/A |
| article pdf uploaded. | 20 April 2021 16:08 CEST | Version of Record | https://www.mdpi.com/2218-1997/7/4/109/pdf-vor |
| article xml file uploaded | 20 April 2021 16:08 CEST | Original file | N/A |
