| article html file updated | 31 August 2025 01:23 CEST | Update | https://www.mdpi.com/1996-1073/12/18/3520 |
| article html file updated | 20 July 2022 03:29 CEST | Update | N/A |
| article html file updated | 13 February 2020 17:20 CET | Update | N/A |
| article html file updated | 25 September 2019 10:42 CEST | Update | N/A |
| article html file updated | 20 September 2019 13:56 CEST | Original file | N/A |
| article pdf uploaded. | 20 September 2019 13:54 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/18/3520/pdf |
| article xml uploaded. | 20 September 2019 13:54 CEST | Update | https://www.mdpi.com/1996-1073/12/18/3520/xml |
| article xml file uploaded | 20 September 2019 13:54 CEST | Update | N/A |
| article pdf uploaded. | 12 September 2019 16:28 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/18/3520/pdf-vor |
| article xml file uploaded | 12 September 2019 16:28 CEST | Original file | N/A |
