| article html file updated | 31 August 2025 02:21 CEST | Update | https://www.mdpi.com/2075-4418/9/4/137 |
| article html file updated | 20 July 2022 02:18 CEST | Update | - |
| article html file updated | 13 February 2020 22:06 CET | Update | - |
| article html file updated | 30 December 2019 11:00 CET | Update | - |
| article html file updated | 30 October 2019 11:22 CET | Original file | - |
| article pdf uploaded. | 30 October 2019 11:20 CET | Updated version of record | https://www.mdpi.com/2075-4418/9/4/137/pdf |
| article xml uploaded. | 30 October 2019 11:20 CET | Update | https://www.mdpi.com/2075-4418/9/4/137/xml |
| article xml file uploaded | 30 October 2019 11:20 CET | Update | - |
| article pdf uploaded. | 2 October 2019 11:38 CEST | Version of Record | https://www.mdpi.com/2075-4418/9/4/137/pdf-vor |
| article xml file uploaded | 2 October 2019 11:38 CEST | Original file | - |
