| article html file updated | 31 August 2025 01:23 CEST | Update | https://www.mdpi.com/1996-1073/12/18/3521 |
| article html file updated | 20 July 2022 03:29 CEST | Update | - |
| article html file updated | 13 February 2020 17:21 CET | Update | - |
| article html file updated | 25 September 2019 10:43 CEST | Update | - |
| article html file updated | 20 September 2019 11:37 CEST | Original file | - |
| article pdf uploaded. | 20 September 2019 11:35 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/18/3521/pdf |
| article xml uploaded. | 20 September 2019 11:35 CEST | Update | https://www.mdpi.com/1996-1073/12/18/3521/xml |
| article xml file uploaded | 20 September 2019 11:35 CEST | Update | - |
| article pdf uploaded. | 12 September 2019 16:34 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/18/3521/pdf-vor |
| article xml file uploaded | 12 September 2019 16:34 CEST | Original file | - |
