| article html file updated | 31 August 2025 22:35 CEST | Update | https://www.mdpi.com/2227-9717/8/6/666 |
| article html file updated | 21 July 2022 06:59 CEST | Update | N/A |
| article html file updated | 10 June 2020 04:45 CEST | Update | N/A |
| article pdf uploaded. | 10 June 2020 04:43 CEST | Updated version of record | https://www.mdpi.com/2227-9717/8/6/666/pdf |
| article xml uploaded. | 10 June 2020 04:43 CEST | Update | https://www.mdpi.com/2227-9717/8/6/666/xml |
| article xml file uploaded | 10 June 2020 04:43 CEST | Update | N/A |
| article html file updated | 4 June 2020 08:10 CEST | Original file | N/A |
| article pdf uploaded. | 4 June 2020 08:09 CEST | Version of Record | https://www.mdpi.com/2227-9717/8/6/666/pdf-vor |
| article xml file uploaded | 4 June 2020 08:09 CEST | Original file | N/A |
