| article html file updated | 31 August 2025 15:12 CEST | Update | https://www.mdpi.com/2227-7072/8/1/18 |
| article html file updated | 20 July 2022 23:42 CEST | Update | - |
| article html file updated | 2 April 2020 08:59 CEST | Update | - |
| article html file updated | 27 March 2020 03:47 CET | Original file | - |
| article pdf uploaded. | 27 March 2020 03:46 CET | Updated version of record | https://www.mdpi.com/2227-7072/8/1/18/pdf |
| article xml uploaded. | 27 March 2020 03:46 CET | Update | https://www.mdpi.com/2227-7072/8/1/18/xml |
| article xml file uploaded | 27 March 2020 03:46 CET | Update | - |
| article pdf uploaded. | 23 March 2020 11:26 CET | Version of Record | https://www.mdpi.com/2227-7072/8/1/18/pdf-vor |
| article xml file uploaded | 23 March 2020 11:26 CET | Original file | - |
