| article html file updated | 30 August 2025 06:28 CEST | Update | https://www.mdpi.com/1996-1073/11/9/2274 |
| article html file updated | 17 July 2022 01:46 CEST | Update | - |
| article html file updated | 10 February 2020 08:09 CET | Update | - |
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| article html file updated | 25 September 2018 13:25 CEST | Update | - |
| article html file updated | 31 August 2018 03:30 CEST | Update | - |
| article xml uploaded. | 31 August 2018 03:28 CEST | Update | https://www.mdpi.com/1996-1073/11/9/2274/xml |
| article xml uploaded. | 31 August 2018 03:28 CEST | Update | - |
| article xml uploaded. | 31 August 2018 03:28 CEST | Update | - |
| article pdf uploaded. | 31 August 2018 03:28 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/9/2274/pdf |
| article html file updated | 29 August 2018 13:38 CEST | Original file | - |
| article pdf uploaded. | 29 August 2018 13:36 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/9/2274/pdf-vor |
| article xml uploaded. | 29 August 2018 13:36 CEST | Update | - |
| article xml file uploaded | 29 August 2018 13:36 CEST | Original file | - |
