| article html file updated | 31 August 2025 10:00 CEST | Update | https://www.mdpi.com/2304-6740/8/2/9 |
| article html file updated | 20 July 2022 18:31 CEST | Update | - |
| article html file updated | 6 March 2020 06:31 CET | Update | - |
| article html file updated | 25 February 2020 10:17 CET | Original file | - |
| article supplementary file uploaded. | 25 February 2020 10:16 CET | - | https://www.mdpi.com/2304-6740/8/2/9#supplementary |
| article pdf uploaded. | 25 February 2020 10:16 CET | Updated version of record | https://www.mdpi.com/2304-6740/8/2/9/pdf |
| article xml uploaded. | 25 February 2020 10:16 CET | Update | https://www.mdpi.com/2304-6740/8/2/9/xml |
| article xml file uploaded | 25 February 2020 10:16 CET | Update | - |
| article pdf uploaded. | 26 January 2020 10:52 CET | Version of Record | https://www.mdpi.com/2304-6740/8/2/9/pdf-vor |
| article xml file uploaded | 26 January 2020 10:52 CET | Original file | - |
