| article html file updated | 31 August 2025 04:52 CEST | Update | https://www.mdpi.com/2409-9287/4/4/59 |
| article html file updated | 19 July 2022 23:24 CEST | Update | - |
| article html file updated | 14 February 2020 11:15 CET | Update | - |
| article html file updated | 12 December 2019 10:09 CET | Original file | - |
| article pdf uploaded. | 12 December 2019 10:08 CET | Updated version of record | https://www.mdpi.com/2409-9287/4/4/59/pdf |
| article xml uploaded. | 12 December 2019 10:08 CET | Update | https://www.mdpi.com/2409-9287/4/4/59/xml |
| article xml file uploaded | 12 December 2019 10:08 CET | Update | - |
| article pdf uploaded. | 20 November 2019 09:13 CET | Version of Record | https://www.mdpi.com/2409-9287/4/4/59/pdf-vor |
| article xml file uploaded | 20 November 2019 09:13 CET | Original file | - |